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windows-nt/Source/XPSP1/NT/shell/themes/themeui/displaysettings.cpp

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/**************************************************************************\
* Module Name: settings.cpp
*
* Contains Implementation of the CDisplaySettings class who is in charge of
* the settings of a single display. This is the data base class who does the
* real change display settings work
*
* Copyright (c) Microsoft Corp. 1992-1998 All Rights Reserved
*
\**************************************************************************/
#include "priv.h"
#include "DisplaySettings.h"
#include "ntreg.hxx"
extern int AskDynaCDS(HWND hDlg);
INT_PTR CALLBACK KeepNewDlgProc(HWND hDlg, UINT message , WPARAM wParam, LPARAM lParam);
UINT g_cfDisplayDevice = 0;
UINT g_cfDisplayName = 0;
UINT g_cfDisplayDeviceID = 0;
UINT g_cfMonitorDevice = 0;
UINT g_cfMonitorName = 0;
UINT g_cfMonitorDeviceID = 0;
UINT g_cfExtensionInterface = 0;
UINT g_cfDisplayDeviceKey = 0;
UINT g_cfDisplayStateFlags = 0;
UINT g_cfDisplayPruningMode = 0;
#define TF_DISPLAYSETTINGS 0
/*****************************************************************\
*
* helper routine
*
\*****************************************************************/
int CDisplaySettings::_InsertSortedDwords(
int val1,
int val2,
int cval,
int **ppval)
{
int *oldpval = *ppval;
int *tmppval;
int i;
for (i=0; i<cval; i++)
{
tmppval = (*ppval) + (i * 2);
if (*tmppval == val1)
{
if (*(tmppval + 1) == val2)
{
return cval;
}
else if (*(tmppval + 1) > val2)
{
break;
}
}
else if (*tmppval > val1)
{
break;
}
}
TraceMsg(TF_FUNC,"_InsertSortedDword, vals = %d %d, cval = %d, index = %d", val1, val2, cval, i);
*ppval = (int *) LocalAlloc(LPTR, (cval + 1) * 2 * sizeof(DWORD));
if (*ppval)
{
//
// Insert the items at the right location in the array
//
if (oldpval) {
CopyMemory(*ppval,
oldpval,
i * 2 * sizeof(DWORD));
}
*(*ppval + (i * 2)) = val1;
*(*ppval + (i * 2) + 1) = val2;
if (oldpval) {
CopyMemory((*ppval) + 2 * (i + 1),
oldpval+ (i * 2),
(cval-i) * 2 * sizeof(DWORD));
LocalFree(oldpval);
}
return (cval + 1);
}
return 0;
}
/*****************************************************************\
*
* debug routine
*
\*****************************************************************/
void CDisplaySettings::_Dump_CDisplaySettings(BOOL bAll)
{
TraceMsg(TF_DUMP_CSETTINGS,"Dump of CDisplaySettings structure");
TraceMsg(TF_DUMP_CSETTINGS,"\t _DisplayDevice = %s", _pDisplayDevice->DeviceName);
TraceMsg(TF_DUMP_CSETTINGS,"\t _cpdm = %d", _cpdm );
TraceMsg(TF_DUMP_CSETTINGS,"\t _apdm = %08lx", _apdm );
TraceMsg(TF_DUMP_CSETTINGS,"\t OrgResolution = %d, %d", _ORGXRES, _ORGYRES );
TraceMsg(TF_DUMP_CSETTINGS,"\t _ptOrgPos = %d, %d", _ptOrgPos.x ,_ptOrgPos.y);
TraceMsg(TF_DUMP_CSETTINGS,"\t OrgColor = %d", _ORGCOLOR );
TraceMsg(TF_DUMP_CSETTINGS,"\t OrgFrequency = %d", _ORGFREQ );
TraceMsg(TF_DUMP_CSETTINGS,"\t _pOrgDevmode = %08lx", _pOrgDevmode );
TraceMsg(TF_DUMP_CSETTINGS,"\t _fOrgAttached = %d", _fOrgAttached );
TraceMsg(TF_DUMP_CSETTINGS,"\t CurResolution = %d, %d", _CURXRES, _CURYRES );
TraceMsg(TF_DUMP_CSETTINGS,"\t _ptCurPos = %d, %d", _ptCurPos.x ,_ptCurPos.y);
TraceMsg(TF_DUMP_CSETTINGS,"\t CurColor = %d", _CURCOLOR );
TraceMsg(TF_DUMP_CSETTINGS,"\t CurFrequency = %d", _CURFREQ );
TraceMsg(TF_DUMP_CSETTINGS,"\t _pCurDevmode = %08lx", _pCurDevmode );
TraceMsg(TF_DUMP_CSETTINGS,"\t _fCurAttached = %d", _fCurAttached );
TraceMsg(TF_DUMP_CSETTINGS,"\t _fUsingDefault = %d", _fUsingDefault );
TraceMsg(TF_DUMP_CSETTINGS,"\t _fPrimary = %d", _fPrimary );
TraceMsg(TF_DUMP_CSETTINGS,"\t _cRef = %d", _cRef );
if (bAll)
{
_Dump_CDevmodeList();
}
}
void CDisplaySettings::_Dump_CDevmodeList(VOID)
{
ULONG i;
for (i=0; _apdm && (i<_cpdm); i++)
{
LPDEVMODE lpdm = (_apdm + i)->lpdm;
TraceMsg(TF_DUMP_CSETTINGS,"\t\t mode %d, %08lx, Flags %08lx, X=%d Y=%d C=%d F=%d O=%d FO=%d",
i, lpdm, (_apdm + i)->dwFlags,
lpdm->dmPelsWidth, lpdm->dmPelsHeight, lpdm->dmBitsPerPel, lpdm->dmDisplayFrequency,
lpdm->dmDisplayOrientation, lpdm->dmDisplayFixedOutput);
}
}
void CDisplaySettings::_Dump_CDevmode(LPDEVMODE pdm)
{
TraceMsg(TF_DUMP_DEVMODE," Size = %d", pdm->dmSize);
TraceMsg(TF_DUMP_DEVMODE," Fields = %08lx", pdm->dmFields);
TraceMsg(TF_DUMP_DEVMODE," XPosition = %d", pdm->dmPosition.x);
TraceMsg(TF_DUMP_DEVMODE," YPosition = %d", pdm->dmPosition.y);
TraceMsg(TF_DUMP_DEVMODE," XResolution = %d", pdm->dmPelsWidth);
TraceMsg(TF_DUMP_DEVMODE," YResolution = %d", pdm->dmPelsHeight);
TraceMsg(TF_DUMP_DEVMODE," Bpp = %d", pdm->dmBitsPerPel);
TraceMsg(TF_DUMP_DEVMODE," Frequency = %d", pdm->dmDisplayFrequency);
TraceMsg(TF_DUMP_DEVMODE," Flags = %d", pdm->dmDisplayFlags);
TraceMsg(TF_DUMP_DEVMODE," XPanning = %d", pdm->dmPanningWidth);
TraceMsg(TF_DUMP_DEVMODE," YPanning = %d", pdm->dmPanningHeight);
TraceMsg(TF_DUMP_DEVMODE," DPI = %d", pdm->dmLogPixels);
TraceMsg(TF_DUMP_DEVMODE," DriverExtra = %d", pdm->dmDriverExtra);
TraceMsg(TF_DUMP_DEVMODE," Orientation = %d", pdm->dmDisplayOrientation);
TraceMsg(TF_DUMP_DEVMODE," FixedOutput = %d", pdm->dmDisplayFixedOutput);
if (pdm->dmDriverExtra)
{
TraceMsg(TF_DUMP_CSETTINGS,"\t - %08lx %08lx",
*(PULONG)(((PUCHAR)pdm)+pdm->dmSize),
*(PULONG)(((PUCHAR)pdm)+pdm->dmSize + 4));
}
}
//
// Lets perform the following operations on the list
//
// (1) Remove identical modes
// (2) Remove 16 color modes for which there is a 256
// color equivalent.
// (3) Remove modes with any dimension less than 640x480
//
void CDisplaySettings::_FilterModes()
{
DWORD i, j;
LPDEVMODE pdm, pdm2;
PMODEARRAY pMode, pMode2;
for (i = 0; _apdm && i < _cpdm; i++)
{
pMode = _apdm + i;
pdm = pMode->lpdm;
// Skip any invalid modes
if (pMode->dwFlags & MODE_INVALID)
{
continue;
}
//
// If any of the following conditions are true, then we want to
// remove the current mode.
//
// Remove any modes that are too small
if (pdm->dmPelsHeight < 480 || pdm->dmPelsWidth < 640)
{
TraceMsg(TF_DUMP_CSETTINGS,"_FilterModes: Mode %d - resolution too small", i);
pMode->dwFlags |= MODE_INVALID;
continue;
}
// Remove any modes that would change the orientation
if (_bFilterOrientation)
{
if (pdm->dmFields & DM_DISPLAYORIENTATION &&
pdm->dmDisplayOrientation != _dwOrientation)
{
pMode->dwFlags |= MODE_INVALID;
TraceMsg(TF_DUMP_CSETTINGS,"_FilterModes: Mode %d - Wrong Orientation", i);
continue;
}
}
// Remove any modes that would change fixed output unless our current mode is
// native resolution
if (_bFilterFixedOutput && _dwFixedOutput != DMDFO_DEFAULT)
{
if (pdm->dmFields & DM_DISPLAYFIXEDOUTPUT &&
pdm->dmDisplayFixedOutput != _dwFixedOutput)
{
pMode->dwFlags |= MODE_INVALID;
TraceMsg(TF_DUMP_CSETTINGS,"_FilterModes: Mode %d - Wrong FixedOutput", i);
continue;
}
}
// Remove any duplicate modes
for (j = i + 1; j < _cpdm; j++)
{
pMode2 = _apdm + j;
pdm2 = pMode2->lpdm;
if (!(pMode2->dwFlags & MODE_INVALID) &&
pdm2->dmBitsPerPel == pdm->dmBitsPerPel &&
pdm2->dmPelsWidth == pdm->dmPelsWidth &&
pdm2->dmPelsHeight == pdm->dmPelsHeight &&
pdm2->dmDisplayFrequency == pdm->dmDisplayFrequency)
{
TraceMsg(TF_DUMP_CSETTINGS,"_FilterModes: Mode %d - Duplicate Mode", i);
pMode2->dwFlags |= MODE_INVALID;
}
}
}
}
//
// _AddDevMode method
//
// This method builds the index lists for the matrix. There is one
// index list for each axes of the three dimemsional matrix of device
// modes.
//
// The entry is also automatically added to the linked list of modes if
// it is not alreay present in the list.
//
BOOL CDisplaySettings::_AddDevMode(LPDEVMODE lpdm)
{
if (lpdm)
{
PMODEARRAY newapdm, tempapdm;
//
// Set the height for the test of the 1152 mode
//
if (lpdm->dmPelsWidth == 1152) {
// Set1152Mode(lpdm->dmPelsHeight);
}
newapdm = (PMODEARRAY) LocalAlloc(LPTR, (_cpdm + 1) * sizeof(MODEARRAY));
if (newapdm)
{
CopyMemory(newapdm, _apdm, _cpdm * sizeof(MODEARRAY));
(newapdm + _cpdm)->dwFlags &= ~MODE_INVALID;
(newapdm + _cpdm)->dwFlags |= MODE_RAW;
(newapdm + _cpdm)->lpdm = lpdm;
}
tempapdm = _apdm;
_apdm = newapdm;
_cpdm++;
if (tempapdm)
{
LocalFree(tempapdm);
}
}
return TRUE;
}
//
// Return a list of Resolutions supported, given a color depth
//
int CDisplaySettings::GetResolutionList(
int Color,
PPOINT *ppRes)
{
DWORD i;
int cRes = 0;
int *pResTmp = NULL;
LPDEVMODE pdm;
*ppRes = NULL;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
if(!_IsModePreferred(i))
{
continue;
}
pdm = (_apdm + i)->lpdm;
if ((Color == -1) ||
(Color == (int)pdm->dmBitsPerPel))
{
cRes = _InsertSortedDwords(pdm->dmPelsWidth,
pdm->dmPelsHeight,
cRes,
&pResTmp);
}
}
*ppRes = (PPOINT) pResTmp;
return cRes;
}
//
//
// Return a list of color depths supported
//
int CDisplaySettings::GetColorList(
LPPOINT Res,
PLONGLONG *ppColor)
{
DWORD i;
int cColor = 0;
int *pColorTmp = NULL;
LPDEVMODE pdm;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
if(!_IsModePreferred(i))
{
continue;
}
pdm = (_apdm + i)->lpdm;
if ((Res == NULL) ||
(Res->x == -1) ||
(Res->y == -1) ||
(Res->x == (int)pdm->dmPelsWidth) ||
(Res->y == (int)pdm->dmPelsHeight))
{
cColor = _InsertSortedDwords(pdm->dmBitsPerPel,
0,
cColor,
&pColorTmp);
}
}
*ppColor = (PLONGLONG) pColorTmp;
return cColor;
}
int CDisplaySettings::GetFrequencyList(int Color, LPPOINT Res, PLONGLONG *ppFreq)
{
DWORD i;
int cFreq = 0;
int *pFreqTmp = NULL;
LPDEVMODE pdm;
POINT res;
if (Color == -1) {
Color = _CURCOLOR;
}
if (Res == NULL)
{
MAKEXYRES(&res, _CURXRES, _CURYRES);
}
else
{
res = *Res;
}
for (i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
pdm = (_apdm + i)->lpdm;
if (res.x == (int)pdm->dmPelsWidth &&
res.y == (int)pdm->dmPelsHeight &&
Color == (int)pdm->dmBitsPerPel)
{
cFreq = _InsertSortedDwords(pdm->dmDisplayFrequency,
0,
cFreq,
&pFreqTmp);
}
}
*ppFreq = (PLONGLONG) pFreqTmp;
return cFreq;
}
void CDisplaySettings::SetCurFrequency(int Frequency)
{
LPDEVMODE pdm;
LPDEVMODE pdmMatch = NULL;
ULONG i;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
pdm = (_apdm + i)->lpdm;
//
// Find the exact match.
//
if (_CURCOLOR == (int) pdm->dmBitsPerPel &&
_CURXRES == (int) pdm->dmPelsWidth &&
_CURYRES == (int) pdm->dmPelsHeight &&
Frequency == (int) pdm->dmDisplayFrequency)
{
pdmMatch = pdm;
break;
}
}
//
// We should always make a match because the list of frequencies shown to
// the user is only for the current color & resolution
//
ASSERT(pdmMatch);
if (pdmMatch) {
_SetCurrentValues(pdmMatch);
}
}
LPDEVMODE CDisplaySettings::GetCurrentDevMode(void)
{
ULONG dmSize = _pCurDevmode->dmSize + _pCurDevmode->dmDriverExtra;
PDEVMODE pdevmode = (LPDEVMODE) LocalAlloc(LPTR, dmSize);
if (pdevmode) {
CopyMemory(pdevmode, _pCurDevmode, dmSize);
}
return pdevmode;
}
void CDisplaySettings::_SetCurrentValues(LPDEVMODE lpdm)
{
_pCurDevmode = lpdm;
//
// Don't save the other fields (like position) as they are programmed by
// the UI separately.
//
// This should only save hardware specific fields.
//
TraceMsg(TF_DUMP_CSETTINGS,"");
TraceMsg(TF_DUMP_CSETTINGS,"_SetCurrentValues complete");
_Dump_CDisplaySettings(FALSE);
}
BOOL CDisplaySettings::_PerfectMatch(LPDEVMODE lpdm)
{
for (DWORD i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
if ((_apdm + i)->lpdm == lpdm)
{
_SetCurrentValues((_apdm + i)->lpdm);
TraceMsg(TF_DISPLAYSETTINGS, "_PerfectMatch -- return TRUE");
return TRUE;
}
}
TraceMsg(TF_DISPLAYSETTINGS, "_PerfectMatch -- return FALSE");
return FALSE;
}
BOOL CDisplaySettings::_ExactMatch(LPDEVMODE lpdm, BOOL bForceVisible)
{
LPDEVMODE pdm;
ULONG i;
for (i = 0; _apdm && (i < _cpdm); i++)
{
pdm = (_apdm + i)->lpdm;
if (
((lpdm->dmFields & DM_BITSPERPEL) &&
(pdm->dmBitsPerPel != lpdm->dmBitsPerPel))
||
((lpdm->dmFields & DM_PELSWIDTH) &&
(pdm->dmPelsWidth != lpdm->dmPelsWidth))
||
((lpdm->dmFields & DM_PELSHEIGHT) &&
(pdm->dmPelsHeight != lpdm->dmPelsHeight))
||
((lpdm->dmFields & DM_DISPLAYFREQUENCY) &&
(pdm->dmDisplayFrequency != lpdm->dmDisplayFrequency))
)
{
continue;
}
if (!_IsModeVisible(i))
{
if (bForceVisible &&
((((_apdm + i)->dwFlags) & MODE_INVALID) == 0) &&
_bIsPruningOn &&
((((_apdm + i)->dwFlags) & MODE_RAW) == MODE_RAW))
{
(_apdm + i)->dwFlags &= ~MODE_RAW;
}
else
{
continue;
}
}
_SetCurrentValues(pdm);
TraceMsg(TF_DISPLAYSETTINGS, "_ExactMatch -- return TRUE");
return TRUE;
}
TraceMsg(TF_DISPLAYSETTINGS, "_ExactMatch -- return FALSE");
return FALSE;
}
// JoelGros defined a feature where we prefer to give the user
// a color depth of at least 32-bit, or as close to that as the
// display supports. Bryan Starbuck (BryanSt) 3/9/2000
#define MAX_PREFERED_COLOR_DEPTH 32
void CDisplaySettings::_BestMatch(LPPOINT Res, int Color, IN BOOL fAutoSetColorDepth)
{
// -1 means match loosely, based on current _xxx value
LPDEVMODE pdm;
LPDEVMODE pdmMatch = NULL;
ULONG i;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if(!_IsModeVisible(i))
{
continue;
}
pdm = (_apdm + i)->lpdm;
// Take care of exact matches
if ((Color != -1) &&
(Color != (int)pdm->dmBitsPerPel))
{
continue;
}
if ((Res != NULL) &&
(Res->x != -1) &&
( (Res->x != (int)pdm->dmPelsWidth) ||
(Res->y != (int)pdm->dmPelsHeight)) )
{
continue;
}
// Find Best Match
if (pdmMatch == NULL)
{
pdmMatch = pdm;
}
// Find best Color.
if (Color == -1) // Do they want best color matching?
{
if (fAutoSetColorDepth)
{
// This will use the "auto-set a good color depth" feature.
// The best match color depth will not equal the current color depth if
// we are going to need to work closer and closer to our desired color depth.
// (We may never reach it because the user may just have increased the resolution
// so the current color depth isn't supported)
// We prefer keep increasing the color depth to at least the current color depth.
// That may not be possible if that depth isn't supported at this resolution.
// We also would like to keep increasing it until we hit MAX_PREFERED_COLOR_DEPTH
// because colors of at least that deep benefit users.
// Do we need to decrease the color depth? Yes if
if (((int)pdmMatch->dmBitsPerPel > _CURCOLOR) && // the match is more than the current, and
((int)pdmMatch->dmBitsPerPel > MAX_PREFERED_COLOR_DEPTH)) // the match is more than the prefered max
{
// We will want to decrease it if this entry is smaller than our match.
if ((int)pdm->dmBitsPerPel < (int)pdmMatch->dmBitsPerPel)
{
pdmMatch = pdm;
}
}
else
{
// We want to increase it if:
if (((int)pdm->dmBitsPerPel > (int)pdmMatch->dmBitsPerPel) && // this entry is larger than our match, and
((int)pdm->dmBitsPerPel <= max(_CURCOLOR, MAX_PREFERED_COLOR_DEPTH))) // this doesn't take us over our prefered max or current depth (which ever is higher).
{
pdmMatch = pdm;
}
}
}
else
{
// This falls back to the old behavior.
if ((int)pdmMatch->dmBitsPerPel > _CURCOLOR)
{
if ((int)pdm->dmBitsPerPel < (int)pdmMatch->dmBitsPerPel)
{
pdmMatch = pdm;
}
}
else
{
if (((int)pdm->dmBitsPerPel > (int)pdmMatch->dmBitsPerPel) &&
((int)pdm->dmBitsPerPel <= _CURCOLOR))
{
pdmMatch = pdm;
}
}
}
}
// Find best Resolution.
if (((Res == NULL) || (Res->x == -1)) &&
(((int)pdmMatch->dmPelsWidth != _CURXRES) ||
((int)pdmMatch->dmPelsHeight != _CURYRES)))
{
if (((int)pdmMatch->dmPelsWidth > _CURXRES) ||
(((int)pdmMatch->dmPelsWidth == _CURXRES) &&
((int)pdmMatch->dmPelsHeight > _CURYRES)))
{
if (((int)pdm->dmPelsWidth < (int)pdmMatch->dmPelsWidth) ||
(((int)pdm->dmPelsWidth == (int)pdmMatch->dmPelsWidth) &&
((int)pdm->dmPelsHeight < (int)pdmMatch->dmPelsHeight)))
{
pdmMatch = pdm;
}
}
else
{
if (((int)pdm->dmPelsWidth > (int)pdmMatch->dmPelsWidth) ||
(((int)pdm->dmPelsWidth == (int)pdmMatch->dmPelsWidth) &&
((int)pdm->dmPelsHeight > (int)pdmMatch->dmPelsHeight)))
{
if (((int)pdm->dmPelsWidth <= _CURXRES) ||
(((int)pdm->dmPelsWidth == _CURXRES) &&
((int)pdm->dmPelsHeight <= _CURYRES)))
{
pdmMatch = pdm;
}
}
}
}
// Find best Frequency.
if (((int)pdmMatch->dmDisplayFrequency != _CURFREQ) &&
(!((Res == NULL) &&
((int)pdmMatch->dmPelsWidth == _CURXRES) &&
((int)pdmMatch->dmPelsHeight == _CURYRES) &&
(((int)pdm->dmPelsWidth != _CURXRES) ||
((int)pdm->dmPelsHeight != _CURYRES)))) &&
(!((Color == -1) &&
((int)pdmMatch->dmBitsPerPel == _CURCOLOR) &&
((int)pdm->dmBitsPerPel != _CURCOLOR))))
{
if ((int)pdmMatch->dmDisplayFrequency > _CURFREQ)
{
if ((int)pdm->dmDisplayFrequency < (int)pdmMatch->dmDisplayFrequency)
{
pdmMatch = pdm;
}
}
else
{
if (((int)pdm->dmDisplayFrequency > (int)pdmMatch->dmDisplayFrequency) &&
((int)pdm->dmDisplayFrequency <= _CURFREQ))
{
pdmMatch = pdm;
}
}
}
}
_SetCurrentValues(pdmMatch);
}
BOOL CDisplaySettings::GetMonitorName(LPTSTR pszName, DWORD cchSize)
{
DISPLAY_DEVICE ddTmp;
DWORD cAttachedMonitors = 0, nMonitor = 0;
ZeroMemory(&ddTmp, sizeof(ddTmp));
ddTmp.cb = sizeof(DISPLAY_DEVICE);
while (EnumDisplayDevices(_pDisplayDevice->DeviceName, nMonitor, &ddTmp, 0))
{
if (ddTmp.StateFlags & DISPLAY_DEVICE_ATTACHED)
{
++cAttachedMonitors;
if (cAttachedMonitors > 1)
break;
// Single monitor
StrCpyN(pszName, (LPTSTR)ddTmp.DeviceString, cchSize);
}
++nMonitor;
ZeroMemory(&ddTmp, sizeof(ddTmp));
ddTmp.cb = sizeof(DISPLAY_DEVICE);
}
if (cAttachedMonitors == 0)
{
// No monitors
LoadString(HINST_THISDLL, IDS_UNKNOWNMONITOR, pszName, cchSize);
}
else if (cAttachedMonitors > 1)
{
// Multiple monitors
LoadString(HINST_THISDLL, IDS_MULTIPLEMONITORS, pszName, cchSize);
}
return (cAttachedMonitors != 0);
}
BOOL CDisplaySettings::GetMonitorDevice(LPTSTR pszDevice)
{
DISPLAY_DEVICE ddTmp;
ZeroMemory(&ddTmp, sizeof(ddTmp));
ddTmp.cb = sizeof(DISPLAY_DEVICE);
if (EnumDisplayDevices(_pDisplayDevice->DeviceName, 0, &ddTmp, 0))
{
lstrcpy(pszDevice, (LPTSTR)ddTmp.DeviceName);
return TRUE;
}
return FALSE;
}
STDMETHODIMP CDisplaySettings::GetData(FORMATETC *pfmtetc, STGMEDIUM *pstgmed)
{
HRESULT hr;
ASSERT(this);
ASSERT(pfmtetc);
ASSERT(pstgmed);
// Ignore pfmtetc.ptd. All supported data formats are device-independent.
ZeroMemory(pstgmed, SIZEOF(*pstgmed));
if ((hr = QueryGetData(pfmtetc)) == S_OK)
{
LPTSTR pszOut = NULL;
TCHAR szMonitorName[130];
TCHAR szMonitorDevice[40];
if (pfmtetc->cfFormat == g_cfExtensionInterface)
{
//
// Get the array of information back to the device
//
// Allocate a buffer large enough to store all of the information
//
PDESK_EXTENSION_INTERFACE pInterface;
pInterface = (PDESK_EXTENSION_INTERFACE)
GlobalAlloc(GPTR, sizeof(DESK_EXTENSION_INTERFACE));
if (pInterface)
{
CRegistrySettings * RegSettings = new CRegistrySettings(_pDisplayDevice->DeviceKey);
if (RegSettings)
{
pInterface->cbSize = sizeof(DESK_EXTENSION_INTERFACE);
pInterface->pContext = this;
pInterface->lpfnEnumAllModes = CDisplaySettings::_lpfnEnumAllModes;
pInterface->lpfnSetSelectedMode = CDisplaySettings::_lpfnSetSelectedMode;
pInterface->lpfnGetSelectedMode = CDisplaySettings::_lpfnGetSelectedMode;
pInterface->lpfnSetPruningMode = CDisplaySettings::_lpfnSetPruningMode;
pInterface->lpfnGetPruningMode = CDisplaySettings::_lpfnGetPruningMode;
RegSettings->GetHardwareInformation(&pInterface->Info);
pstgmed->tymed = TYMED_HGLOBAL;
pstgmed->hGlobal = pInterface;
pstgmed->pUnkForRelease = NULL;
hr = S_OK;
delete RegSettings;
}
}
else
{
hr = E_OUTOFMEMORY;
}
}
else if (pfmtetc->cfFormat == g_cfMonitorDeviceID)
{
//
//! This code is broken. It must be removed.
//
/*
DISPLAY_DEVICE ddTmp;
BOOL fKnownMonitor;
ZeroMemory(&ddTmp, sizeof(ddTmp));
ddTmp.cb = sizeof(DISPLAY_DEVICE);
fKnownMonitor = EnumDisplayDevices(_pDisplayDevice->DeviceName, 0, &ddTmp, 0);
hr = GetDevInstID((LPTSTR)(fKnownMonitor ? ddTmp.DeviceKey : TEXT("")), pstgmed);
*/
hr = E_UNEXPECTED;
}
else if (pfmtetc->cfFormat == g_cfDisplayStateFlags)
{
DWORD* pdwStateFlags = (DWORD*)GlobalAlloc(GPTR, sizeof(DWORD));
if (pdwStateFlags)
{
*pdwStateFlags = _pDisplayDevice->StateFlags;
pstgmed->tymed = TYMED_HGLOBAL;
pstgmed->hGlobal = pdwStateFlags;
pstgmed->pUnkForRelease = NULL;
hr = S_OK;
}
else
{
hr = E_OUTOFMEMORY;
}
}
else if (pfmtetc->cfFormat == g_cfDisplayPruningMode)
{
BYTE* pPruningMode = (BYTE*)GlobalAlloc(GPTR, sizeof(BYTE));
if (pPruningMode)
{
*pPruningMode = (BYTE)(_bCanBePruned && _bIsPruningOn ? 1 : 0);
pstgmed->tymed = TYMED_HGLOBAL;
pstgmed->hGlobal = pPruningMode;
pstgmed->pUnkForRelease = NULL;
hr = S_OK;
}
else
{
hr = E_OUTOFMEMORY;
}
}
else if (pfmtetc->cfFormat == g_cfDisplayDeviceID)
{
{
CRegistrySettings *pRegSettings = new CRegistrySettings(_pDisplayDevice->DeviceKey);
if (pRegSettings)
{
pszOut = pRegSettings->GetDeviceInstanceId();
hr = CopyDataToStorage(pstgmed, pszOut);
delete pRegSettings;
}
else
{
hr = E_OUTOFMEMORY;
}
}
}
else
{
if (pfmtetc->cfFormat == g_cfMonitorName)
{
GetMonitorName(szMonitorName, ARRAYSIZE(szMonitorName));
pszOut = szMonitorName;
}
else if (pfmtetc->cfFormat == g_cfMonitorDevice)
{
GetMonitorDevice(szMonitorDevice);
pszOut = szMonitorDevice;
}
else if (pfmtetc->cfFormat == g_cfDisplayDevice)
{
pszOut = (LPTSTR)_pDisplayDevice->DeviceName;
}
else if (pfmtetc->cfFormat == g_cfDisplayDeviceKey)
{
pszOut = (LPTSTR)_pDisplayDevice->DeviceKey;
}
else
{
ASSERT(pfmtetc->cfFormat == g_cfDisplayName);
pszOut = (LPTSTR)_pDisplayDevice->DeviceString;
}
hr = CopyDataToStorage(pstgmed, pszOut);
}
}
return(hr);
}
STDMETHODIMP CDisplaySettings::CopyDataToStorage(STGMEDIUM *pstgmed, LPTSTR pszOut)
{
HRESULT hr = E_UNEXPECTED;
int cch;
if (NULL != pszOut)
{
cch = lstrlen(pszOut) + 1;
LPWSTR pwszDevice = (LPWSTR)GlobalAlloc(GPTR, cch * SIZEOF(WCHAR));
if (pwszDevice)
{
//
// We always return UNICODE string
//
#ifdef UNICODE
lstrcpy(pwszDevice, pszOut);
#else
int cchConverted = MultiByteToWideChar(CP_ACP, 0, pszOut , -1, pwszDevice, cch);
ASSERT(cchConverted == cch);
#endif
pstgmed->tymed = TYMED_HGLOBAL;
pstgmed->hGlobal = pwszDevice;
pstgmed->pUnkForRelease = NULL;
hr = S_OK;
}
else
{
hr = E_OUTOFMEMORY;
}
}
return hr;
}
STDMETHODIMP CDisplaySettings::GetDataHere(FORMATETC *pfmtetc, STGMEDIUM *pstgpmed)
{
ZeroMemory(pfmtetc, SIZEOF(pfmtetc));
return E_NOTIMPL;
}
//
// Check that all the parameters to the interface are appropriately
//
STDMETHODIMP CDisplaySettings::QueryGetData(FORMATETC *pfmtetc)
{
CLIPFORMAT cfFormat;
if (pfmtetc->dwAspect != DVASPECT_CONTENT)
{
return DV_E_DVASPECT;
}
if ((pfmtetc->tymed & TYMED_HGLOBAL) == 0)
{
return DV_E_TYMED;
}
cfFormat = pfmtetc->cfFormat;
if ((cfFormat != g_cfDisplayDevice) &&
(cfFormat != g_cfDisplayName) &&
(cfFormat != g_cfDisplayDeviceID) &&
(cfFormat != g_cfMonitorDevice) &&
(cfFormat != g_cfMonitorName) &&
(cfFormat != g_cfMonitorDeviceID) &&
(cfFormat != g_cfExtensionInterface) &&
(cfFormat != g_cfDisplayDeviceKey) &&
(cfFormat != g_cfDisplayStateFlags) &&
(cfFormat != g_cfDisplayPruningMode))
{
return DV_E_FORMATETC;
}
if (pfmtetc->lindex != -1)
{
return DV_E_LINDEX;
}
return S_OK;
}
STDMETHODIMP CDisplaySettings::GetCanonicalFormatEtc(FORMATETC *pfmtetcIn, FORMATETC *pfmtetcOut)
{
HRESULT hr;
ASSERT(pfmtetcIn);
ASSERT(pfmtetcOut);
hr = QueryGetData(pfmtetcIn);
if (hr == S_OK)
{
*pfmtetcOut = *pfmtetcIn;
if (pfmtetcIn->ptd == NULL)
hr = DATA_S_SAMEFORMATETC;
else
{
pfmtetcIn->ptd = NULL;
ASSERT(hr == S_OK);
}
}
else
ZeroMemory(pfmtetcOut, SIZEOF(*pfmtetcOut));
return(hr);
}
STDMETHODIMP CDisplaySettings::SetData(FORMATETC *pfmtetc, STGMEDIUM *pstgmed, BOOL bRelease)
{
return E_NOTIMPL;
}
STDMETHODIMP CDisplaySettings::EnumFormatEtc(DWORD dwDirFlags, IEnumFORMATETC ** ppiefe)
{
HRESULT hr;
ASSERT(ppiefe);
*ppiefe = NULL;
if (dwDirFlags == DATADIR_GET)
{
FORMATETC rgfmtetc[] =
{
{ (CLIPFORMAT)g_cfDisplayDevice, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfDisplayName, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfMonitorDevice, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfMonitorName, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfExtensionInterface, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfDisplayDeviceID, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfMonitorDeviceID, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfDisplayDeviceKey, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfDisplayStateFlags, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
{ (CLIPFORMAT)g_cfDisplayPruningMode, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL },
};
hr = SHCreateStdEnumFmtEtc(ARRAYSIZE(rgfmtetc), rgfmtetc, ppiefe);
}
else
hr = E_NOTIMPL;
return(hr);
}
STDMETHODIMP CDisplaySettings::DAdvise(FORMATETC *pfmtetc, DWORD dwAdviseFlags, IAdviseSink * piadvsink, DWORD * pdwConnection)
{
ASSERT(pfmtetc);
ASSERT(pdwConnection);
*pdwConnection = 0;
return OLE_E_ADVISENOTSUPPORTED;
}
STDMETHODIMP CDisplaySettings::DUnadvise(DWORD dwConnection)
{
return OLE_E_ADVISENOTSUPPORTED;
}
STDMETHODIMP CDisplaySettings::EnumDAdvise(IEnumSTATDATA ** ppiesd)
{
ASSERT(ppiesd);
*ppiesd = NULL;
return OLE_E_ADVISENOTSUPPORTED;
}
void CDisplaySettings::_InitClipboardFormats()
{
if (g_cfDisplayDevice == 0)
g_cfDisplayDevice = RegisterClipboardFormat(DESKCPLEXT_DISPLAY_DEVICE);
if (g_cfDisplayDeviceID == 0)
g_cfDisplayDeviceID = RegisterClipboardFormat(DESKCPLEXT_DISPLAY_ID);
if (g_cfDisplayName == 0)
g_cfDisplayName = RegisterClipboardFormat(DESKCPLEXT_DISPLAY_NAME);
if (g_cfMonitorDevice == 0)
g_cfMonitorDevice = RegisterClipboardFormat(DESKCPLEXT_MONITOR_DEVICE);
if (g_cfMonitorDeviceID == 0)
g_cfMonitorDeviceID = RegisterClipboardFormat(DESKCPLEXT_MONITOR_ID);
if (g_cfMonitorName == 0)
g_cfMonitorName = RegisterClipboardFormat(DESKCPLEXT_MONITOR_NAME);
if (g_cfExtensionInterface == 0)
g_cfExtensionInterface = RegisterClipboardFormat(DESKCPLEXT_INTERFACE);
if (g_cfDisplayDeviceKey == 0)
g_cfDisplayDeviceKey = RegisterClipboardFormat(DESKCPLEXT_DISPLAY_DEVICE_KEY);
if (g_cfDisplayStateFlags == 0)
g_cfDisplayStateFlags = RegisterClipboardFormat(DESKCPLEXT_DISPLAY_STATE_FLAGS);
if (g_cfDisplayPruningMode == 0)
g_cfDisplayPruningMode = RegisterClipboardFormat(DESKCPLEXT_PRUNING_MODE);
}
HRESULT CDisplaySettings::QueryInterface(REFIID riid, LPVOID * ppvObj)
{
static const QITAB qit[] = {
QITABENT(CDisplaySettings, IDataObject),
QITABENT(CDisplaySettings, IDisplaySettings),
{ 0 },
};
return QISearch(this, qit, riid, ppvObj);
}
ULONG CDisplaySettings::AddRef()
{
return InterlockedIncrement(&_cRef);
}
ULONG CDisplaySettings::Release()
{
if (InterlockedDecrement(&_cRef))
return _cRef;
delete this;
return 0;
}
STDMETHODIMP_(LPDEVMODEW)
CDisplaySettings::_lpfnEnumAllModes(
LPVOID pContext,
DWORD iMode)
{
DWORD cCount = 0;
DWORD i;
CDisplaySettings *pSettings = (CDisplaySettings *) pContext;
for (i = 0; pSettings->_apdm && (i < pSettings->_cpdm); i++)
{
// Don't show invalid modes or raw modes if pruning is on;
if(!_IsModeVisible(pSettings, i))
{
continue;
}
if (cCount == iMode)
{
return (pSettings->_apdm + i)->lpdm;
}
cCount++;
}
return NULL;
}
STDMETHODIMP_(BOOL)
CDisplaySettings::_lpfnSetSelectedMode(
LPVOID pContext,
LPDEVMODEW lpdm)
{
CDisplaySettings *pSettings = (CDisplaySettings *) pContext;
return pSettings->_PerfectMatch(lpdm);
}
STDMETHODIMP_(LPDEVMODEW)
CDisplaySettings::_lpfnGetSelectedMode(
LPVOID pContext
)
{
CDisplaySettings *pSettings = (CDisplaySettings *) pContext;
return pSettings->_pCurDevmode;
}
STDMETHODIMP_(VOID)
CDisplaySettings::_lpfnSetPruningMode(
LPVOID pContext,
BOOL bIsPruningOn)
{
CDisplaySettings *pSettings = (CDisplaySettings *) pContext;
pSettings->SetPruningMode(bIsPruningOn);
}
STDMETHODIMP_(VOID)
CDisplaySettings::_lpfnGetPruningMode(
LPVOID pContext,
BOOL* pbCanBePruned,
BOOL* pbIsPruningReadOnly,
BOOL* pbIsPruningOn)
{
CDisplaySettings *pSettings = (CDisplaySettings *) pContext;
pSettings->GetPruningMode(pbCanBePruned,
pbIsPruningReadOnly,
pbIsPruningOn);
}
// If any attached device is at 640x480, we want to force small font
BOOL CDisplaySettings::IsSmallFontNecessary()
{
if (_fOrgAttached || _fCurAttached)
{
//
// Force Small fonts at 640x480
//
if (_CURXRES < 800 || _CURYRES < 600)
return TRUE;
}
return FALSE;
}
// Constructor for CDisplaySettings
//
// (gets called when ever a CDisplaySettings object is created)
//
CDisplaySettings::CDisplaySettings()
: _cRef(1)
, _cpdm(0)
, _apdm(0)
, _hPruningRegKey(NULL)
, _bCanBePruned(FALSE)
, _bIsPruningReadOnly(TRUE)
, _bIsPruningOn(FALSE)
, _pOrgDevmode(NULL)
, _pCurDevmode(NULL)
, _fOrgAttached(FALSE)
, _fCurAttached(FALSE)
, _bFilterOrientation(FALSE)
, _bFilterFixedOutput(FALSE)
{
SetRectEmpty(&_rcPreview);
}
//
// Destructor
//
CDisplaySettings::~CDisplaySettings() {
TraceMsg(TF_DISPLAYSETTINGS, "**** Destructing %s", _pDisplayDevice->DeviceName);
if (_apdm)
{
while(_cpdm--)
{
LocalFree((_apdm + _cpdm)->lpdm);
}
LocalFree(_apdm);
_apdm = NULL;
}
_cpdm = 0;
if(NULL != _hPruningRegKey)
RegCloseKey(_hPruningRegKey);
}
//
// _SetFilterOptions -- determine if display modes should be filtered
// by orientation and/or fixed output (centered/stretched)
//
void CDisplaySettings::_SetFilterOptions(LPCTSTR pszDeviceName, LPDEVMODEW pdevmode)
{
BOOL bCurrent = FALSE;
BOOL bRegistry = FALSE;
// See if we need to filter modes by orientation and/or stretched/centered
ZeroMemory(pdevmode, sizeof(DEVMODE));
pdevmode->dmSize = sizeof(DEVMODE);
bCurrent = EnumDisplaySettingsExWrap(pszDeviceName,
ENUM_CURRENT_SETTINGS,
pdevmode,
0);
if (!bCurrent)
{
TraceMsg(TF_DUMP_CSETTINGS, "_SetFilterOptions -- No Current Mode. Try to use registry settings.");
bRegistry = EnumDisplaySettingsExWrap(pszDeviceName,
ENUM_REGISTRY_SETTINGS,
pdevmode,
0);
}
if (bCurrent || bRegistry)
{
if (pdevmode->dmFields & DM_DISPLAYORIENTATION)
{
_bFilterOrientation = TRUE;
_dwOrientation = pdevmode->dmDisplayOrientation;
TraceMsg(TF_DUMP_CSETTINGS, "Filtering modes on orientation %d", _dwOrientation);
}
if (pdevmode->dmFields & DM_DISPLAYFIXEDOUTPUT)
{
_bFilterFixedOutput = TRUE;
_dwFixedOutput = pdevmode->dmDisplayFixedOutput;
TraceMsg(TF_DUMP_CSETTINGS, "Filtering modes on fixed output %d", _dwFixedOutput);
}
}
else
{
TraceMsg(TF_DUMP_CSETTINGS, "_SetFilterOptions -- No settings, forcing default");
_bFilterOrientation = TRUE;
_dwOrientation = DMDO_DEFAULT;
}
TraceMsg(TF_DUMP_CSETTINGS, "Filter mode settings for: %s", pszDeviceName);
TraceMsg(TF_DUMP_CSETTINGS, " _bFilterOrientation: %d, _dwOrientation: %d", _bFilterOrientation, _dwOrientation);
TraceMsg(TF_DUMP_CSETTINGS, " _bFilterFixedOutput: %d, _dwFixedOutput: %d", _bFilterFixedOutput, _dwFixedOutput);
}
//
// InitSettings -- Enumerate the settings, and build the mode list when
//
BOOL CDisplaySettings::InitSettings(LPDISPLAY_DEVICE pDisplay)
{
BOOL fReturn = FALSE;
LPDEVMODE pdevmode = (LPDEVMODE) LocalAlloc(LPTR, (sizeof(DEVMODE) + 0xFFFF));
if (pdevmode)
{
ULONG i = 0;
BOOL bCurrent = FALSE;
BOOL bRegistry = FALSE;
BOOL bExact = FALSE;
fReturn = TRUE;
// Set the cached values for modes.
MAKEXYRES(&_ptCurPos, 0, 0);
_fCurAttached = FALSE;
_pCurDevmode = NULL;
// Save the display name
ASSERT(pDisplay);
_pDisplayDevice = pDisplay;
TraceMsg(TF_GENERAL, "Initializing CDisplaySettings for %s", _pDisplayDevice->DeviceName);
// Pruning Mode
_bCanBePruned = ((_pDisplayDevice->StateFlags & DISPLAY_DEVICE_MODESPRUNED) != 0);
_bIsPruningReadOnly = TRUE;
_bIsPruningOn = FALSE;
if (_bCanBePruned)
{
_bIsPruningOn = TRUE; // if can be pruned, by default pruning is on
GetDeviceRegKey(_pDisplayDevice->DeviceKey, &_hPruningRegKey, &_bIsPruningReadOnly);
if (_hPruningRegKey)
{
DWORD dwIsPruningOn = 1;
DWORD cb = sizeof(dwIsPruningOn);
RegQueryValueEx(_hPruningRegKey,
SZ_PRUNNING_MODE,
NULL,
NULL,
(LPBYTE)&dwIsPruningOn,
&cb);
_bIsPruningOn = (dwIsPruningOn != 0);
}
}
// See if we need to filter modes by orientation and/or stretched/centered
_SetFilterOptions(_pDisplayDevice->DeviceName, pdevmode);
// Lets generate a list with all the possible modes.
ZeroMemory(pdevmode, sizeof(DEVMODE));
pdevmode->dmSize = sizeof(DEVMODE);
// Enum the raw list of modes
while (EnumDisplaySettingsExWrap(_pDisplayDevice->DeviceName, i++, pdevmode, EDS_RAWMODE))
{
WORD dmsize = pdevmode->dmSize + pdevmode->dmDriverExtra;
LPDEVMODE lpdm = (LPDEVMODE) LocalAlloc(LPTR, dmsize);
if (lpdm)
{
CopyMemory(lpdm, pdevmode, dmsize);
_AddDevMode(lpdm);
}
pdevmode->dmDriverExtra = 0;
}
// Filter the list of modes
_FilterModes();
if(_bCanBePruned)
{
// Enum pruned list of modes
i = 0;
_bCanBePruned = FALSE;
while (EnumDisplaySettingsExWrap(_pDisplayDevice->DeviceName, i++, pdevmode, 0))
{
if(_MarkMode(pdevmode))
_bCanBePruned = TRUE; // at least one non-raw mode
pdevmode->dmDriverExtra = 0;
}
if(!_bCanBePruned)
{
_bIsPruningReadOnly = TRUE;
_bIsPruningOn = FALSE;
}
}
// Debug
_Dump_CDisplaySettings(TRUE);
// Get the current mode
ZeroMemory(pdevmode,sizeof(DEVMODE));
pdevmode->dmSize = sizeof(DEVMODE);
bCurrent = EnumDisplaySettingsExWrap(_pDisplayDevice->DeviceName,
ENUM_CURRENT_SETTINGS,
pdevmode,
0);
if (!bCurrent)
{
TraceMsg(TF_DISPLAYSETTINGS, "InitSettings -- No Current Mode. Try to use registry settings.");
ZeroMemory(pdevmode,sizeof(DEVMODE));
pdevmode->dmSize = sizeof(DEVMODE);
bRegistry = EnumDisplaySettingsExWrap(_pDisplayDevice->DeviceName,
ENUM_REGISTRY_SETTINGS,
pdevmode,
0);
}
// Set the default values based on registry or current settings.
if (bCurrent || bRegistry)
{
// Check if this DEVMODE is in the list
TraceMsg(TF_FUNC, "Devmode for Exact Matching");
_Dump_CDevmode(pdevmode);
TraceMsg(TF_FUNC, "");
// If the current mode is not in the list of modes supported by
// the monitor, we want to show it anyway.
//
// Consider the following scenario: the user sets the display
// to 1024x768 and after that it goes to DevManager and selects
// a monitor type that can not do that mode. When the user
// reopens the applet the current mode will be pruned out.
// In such a case we want the current mode to be visible.
bExact = _ExactMatch(pdevmode, TRUE);
if (!bExact && bCurrent)
{
// If the current mode is not in the list, we may have a problem.
}
// Is attached?
if(bCurrent)
{
_fOrgAttached = _fCurAttached = ((pdevmode->dmFields & DM_POSITION) ? 1 : 0);
}
// Set the original values
if (bExact == TRUE)
{
MAKEXYRES(&_ptCurPos, pdevmode->dmPosition.x, pdevmode->dmPosition.y);
ConfirmChangeSettings();
}
}
// If we have no modes, return FALSE.
if (_cpdm == 0)
{
FmtMessageBox(ghwndPropSheet,
MB_ICONEXCLAMATION,
MSG_CONFIGURATION_PROBLEM,
MSG_INVALID_OLD_DISPLAY_DRIVER);
fReturn = FALSE;
}
else
{
// If there were no current values, set some now
// But don't confirm them ...
if (bExact == FALSE)
{
TraceMsg(TF_DISPLAYSETTINGS, "InitSettings -- No Current OR Registry Mode");
i = 0;
// Try setting any mode as the current.
while (_apdm && (_PerfectMatch((_apdm + i++)->lpdm) == FALSE))
{
if (i > _cpdm)
{
FmtMessageBox(ghwndPropSheet,
MB_ICONEXCLAMATION,
MSG_CONFIGURATION_PROBLEM,
MSG_INVALID_OLD_DISPLAY_DRIVER);
fReturn = FALSE;
break;
}
}
if (fReturn && _fCurAttached)
{
MAKEXYRES(&_ptCurPos, _pCurDevmode->dmPosition.x, _pCurDevmode->dmPosition.y);
}
}
if (fReturn)
{
// Export our interfaces for extended properly pages.
_InitClipboardFormats();
// Final debug output
TraceMsg(TF_DUMP_CSETTINGS," InitSettings successful - current values :");
_Dump_CDisplaySettings(FALSE);
}
}
LocalFree(pdevmode);
}
return TRUE;
}
// SaveSettings
//
// Writes the new display parameters to the proper place in the
// registry.
int CDisplaySettings::SaveSettings(DWORD dwSet)
{
int iResult = 0;
if (_pCurDevmode)
{
// Make a copy of the current devmode
ULONG dmSize = _pCurDevmode->dmSize + _pCurDevmode->dmDriverExtra;
PDEVMODE pdevmode = (LPDEVMODE) LocalAlloc(LPTR, dmSize);
if (pdevmode)
{
CopyMemory(pdevmode, _pCurDevmode, dmSize);
// Save all of the new values out to the registry
// Resolution color bits and frequency
//
// We always have to set DM_POSITION when calling the API.
// In order to remove a device from the desktop, what actually needs
// to be done is provide an empty rectangle.
pdevmode->dmFields |= DM_POSITION;
if (!_fCurAttached)
{
pdevmode->dmPelsWidth = 0;
pdevmode->dmPelsHeight = 0;
}
else
{
pdevmode->dmPosition.x = _ptCurPos.x;
pdevmode->dmPosition.y = _ptCurPos.y;
}
TraceMsg(TF_GENERAL, "SaveSettings:: Display: %s", _pDisplayDevice->DeviceName);
_Dump_CDevmode(pdevmode);
// These calls have NORESET flag set so that it only goes to
// change the registry settings, it does not refresh the display
// If EnumDisplaySettings was called with EDS_RAWMODE, we need CDS_RAWMODE below.
// Otherwise, it's harmless.
iResult = ChangeDisplaySettingsEx(_pDisplayDevice->DeviceName,
pdevmode,
NULL,
CDS_RAWMODE | dwSet | ( _fPrimary ? CDS_SET_PRIMARY : 0),
NULL);
if (iResult < 0)
{
TraceMsg(TF_DISPLAYSETTINGS, "**** SaveSettings:: ChangeDisplaySettingsEx not successful on %s", _pDisplayDevice->DeviceName);
}
LocalFree(pdevmode);
}
}
return iResult;
}
HRESULT CDisplaySettings::GetDevInstID(LPTSTR lpszDeviceKey, STGMEDIUM *pstgmed)
{
HRESULT hr = E_FAIL;
return hr;
}
void ConvertStrToToken(LPTSTR pszString, DWORD cchSize)
{
while (pszString[0])
{
if (TEXT('\\') == pszString[0])
{
pszString[0] = TEXT(':');
}
pszString++;
}
}
HRESULT CDisplaySettings::_GetRegKey(LPDEVMODE pDevmode, int * pnIndex, LPTSTR pszRegKey, DWORD cchSize,
LPTSTR pszRegValue, DWORD cchValueSize)
{
HRESULT hr = E_FAIL;
DISPLAY_DEVICE ddMonitor = {0};
ddMonitor.cb = sizeof(ddMonitor);
if (pDevmode && pDevmode->dmDeviceName && _pDisplayDevice &&
EnumDisplayDevices(_pDisplayDevice->DeviceName, *pnIndex, &ddMonitor, 0))
{
TCHAR szMonitor[MAX_PATH];
TCHAR szVideoAdapter[MAX_PATH];
StrCpyN(szMonitor, ddMonitor.DeviceID, ARRAYSIZE(szMonitor));
StrCpyN(szVideoAdapter, _pDisplayDevice->DeviceID, ARRAYSIZE(szVideoAdapter));
ConvertStrToToken(szMonitor, ARRAYSIZE(szMonitor));
ConvertStrToToken(szVideoAdapter, ARRAYSIZE(szVideoAdapter));
wnsprintf(pszRegKey, cchSize, TEXT("%s\\%s\\%s,%d\\%dx%d x %dHz"), SZ_CP_SETTINGS_VIDEO,
szVideoAdapter, szMonitor, *pnIndex, pDevmode->dmPelsWidth, pDevmode->dmPelsHeight,
pDevmode->dmDisplayFrequency);
wnsprintf(pszRegValue, cchValueSize, TEXT("%d bpp"), pDevmode->dmBitsPerPel);
hr = S_OK;
}
return hr;
}
BOOL CDisplaySettings::ConfirmChangeSettings()
{
// Succeeded, so, reset the original settings
_ptOrgPos = _ptCurPos;
_pOrgDevmode = _pCurDevmode;
_fOrgAttached = _fCurAttached;
// Now write the results to the registry so we know this is safe and can use it later.
TCHAR szRegKey[2*MAX_PATH];
TCHAR szRegValue[20];
int nIndex = 0;
while (SUCCEEDED(_GetRegKey(_pCurDevmode, &nIndex, szRegKey, ARRAYSIZE(szRegKey), szRegValue, ARRAYSIZE(szRegValue))))
{
HKEY hKey;
if (SUCCEEDED(HrRegCreateKeyEx(HKEY_LOCAL_MACHINE, szRegKey, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL)))
{
RegCloseKey(hKey);
}
HrRegSetDWORD(HKEY_LOCAL_MACHINE, szRegKey, szRegValue, 1);
nIndex++;
}
return TRUE;
}
BOOL CDisplaySettings::IsKnownSafe(void)
{
TCHAR szRegKey[2*MAX_PATH];
TCHAR szRegValue[20];
BOOL fIsSafe = FALSE;
int nIndex = 0;
while (SUCCEEDED(_GetRegKey(_pCurDevmode, &nIndex, szRegKey, ARRAYSIZE(szRegKey), szRegValue, ARRAYSIZE(szRegValue))))
{
fIsSafe = HrRegGetDWORD(HKEY_LOCAL_MACHINE, szRegKey, szRegValue, 0);
if (!fIsSafe)
{
break;
}
nIndex++;
}
// TODO: In blackcomb, just return TRUE as long as long as we were able to prune the list. If we could prune the list,
// then the driver dudes where able to get PnP IDs from the video cards (adapters) and monitors, so the list of
// supported modes should be accurate. If not, the drivers guys (ErickS) will fix. -BryanSt
return fIsSafe;
}
int CDisplaySettings::RestoreSettings()
{
//
// Test failed, so restore the old settings, only restore the color and resolution
// information, and do restore the monitor position and its attached status
// Although this function is currently only called when restoring resolution
// the user could have changed position, then resolution and then clicked 'Apply,'
// in which case we want to revert position as well.
//
int iResult = DISP_CHANGE_SUCCESSFUL;
PDEVMODE pdevmode;
//
// If this display was originally turned off, don't bother
//
if ((_pOrgDevmode != NULL) &&
//(_pOrgDevmode != _pCurDevmode))
((_pOrgDevmode != _pCurDevmode) || (_ptOrgPos.x != _ptCurPos.x) || (_ptOrgPos.y != _ptCurPos.y) ))
{
iResult = DISP_CHANGE_NOTUPDATED;
// Make a copy of the original devmode
ULONG dmSize = _pOrgDevmode->dmSize + _pOrgDevmode->dmDriverExtra;
pdevmode = (LPDEVMODE) LocalAlloc(LPTR, dmSize);
if (pdevmode)
{
CopyMemory(pdevmode, _pOrgDevmode, dmSize);
pdevmode->dmFields |= DM_POSITION;
pdevmode->dmPosition.x = _ptOrgPos.x;
pdevmode->dmPosition.y = _ptOrgPos.y;
if (!_fOrgAttached)
{
pdevmode->dmPelsWidth = 0;
pdevmode->dmPelsHeight = 0;
}
TraceMsg(TF_GENERAL, "RestoreSettings:: Display: %s", _pDisplayDevice->DeviceName);
_Dump_CDevmode(pdevmode);
// If EnumDisplaySettings was called with EDS_RAWMODE, we need CDS_RAWMODE below.
// Otherwise, it's harmless.
iResult = ChangeDisplaySettingsEx(_pDisplayDevice->DeviceName,
pdevmode,
NULL,
CDS_RAWMODE | CDS_UPDATEREGISTRY | CDS_NORESET | ( _fPrimary ? CDS_SET_PRIMARY : 0),
NULL);
if (iResult < 0 )
{
TraceMsg(TF_DISPLAYSETTINGS, "**** RestoreSettings:: ChangeDisplaySettingsEx not successful on %s", _pDisplayDevice->DeviceName);
ASSERT(FALSE);
LocalFree(pdevmode);
return iResult;
}
else
{
// Succeeded, so, reset the original settings
_ptCurPos = _ptOrgPos;
_pCurDevmode = _pOrgDevmode;
_fCurAttached = _fOrgAttached;
if(_bCanBePruned && !_bIsPruningReadOnly && _bIsPruningOn && _IsCurDevmodeRaw())
SetPruningMode(FALSE);
}
LocalFree(pdevmode);
}
}
return iResult;
}
BOOL CDisplaySettings::_IsModeVisible(int i)
{
return _IsModeVisible(this, i);
}
BOOL CDisplaySettings::_IsModeVisible(CDisplaySettings* pSettings, int i)
{
ASSERT(pSettings);
if (!pSettings->_apdm)
{
return FALSE;
}
// (the mode is valid) AND
// ((pruning mode is off) OR (mode is not raw))
return ((!((pSettings->_apdm + i)->dwFlags & MODE_INVALID)) &&
((!pSettings->_bIsPruningOn) ||
(!((pSettings->_apdm + i)->dwFlags & MODE_RAW))
)
);
}
BOOL CDisplaySettings::_IsModePreferred(int i)
{
LPDEVMODE pDevMode = ((PMODEARRAY)(_apdm + i))->lpdm;
if (_pCurDevmode == pDevMode)
return TRUE;
BOOL bLandscape = (pDevMode->dmPelsWidth >= pDevMode->dmPelsHeight);
TraceMsg(TF_DUMP_CSETTINGS, "_IsModePreferred: %d x %d - landscape mode: %d",
pDevMode->dmPelsWidth, pDevMode->dmPelsHeight, bLandscape);
// (the mode is valid) AND
// ((pruning mode is off) OR (mode is not raw))
return (pDevMode->dmBitsPerPel >= 15 &&
((bLandscape && pDevMode->dmPelsWidth >= 800 && pDevMode->dmPelsHeight >= 600) ||
(!bLandscape && pDevMode->dmPelsWidth >= 600 && pDevMode->dmPelsHeight >= 800)));
}
BOOL CDisplaySettings::_MarkMode(LPDEVMODE lpdm)
{
LPDEVMODE pdm;
ULONG i;
BOOL bMark = FALSE;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if (!((_apdm + i)->dwFlags & MODE_INVALID))
{
pdm = (_apdm + i)->lpdm;
if (
((lpdm->dmFields & DM_BITSPERPEL) &&
(pdm->dmBitsPerPel == lpdm->dmBitsPerPel))
&&
((lpdm->dmFields & DM_PELSWIDTH) &&
(pdm->dmPelsWidth == lpdm->dmPelsWidth))
&&
((lpdm->dmFields & DM_PELSHEIGHT) &&
(pdm->dmPelsHeight == lpdm->dmPelsHeight))
&&
((lpdm->dmFields & DM_DISPLAYFREQUENCY) &&
(pdm->dmDisplayFrequency == lpdm->dmDisplayFrequency))
)
{
(_apdm + i)->dwFlags &= ~MODE_RAW;
bMark = TRUE;
}
}
}
return bMark;
}
BOOL CDisplaySettings::_IsCurDevmodeRaw()
{
LPDEVMODE pdm;
ULONG i;
BOOL bCurrentAndPruned = FALSE;
for (i = 0; _apdm && (i < _cpdm); i++)
{
if (!((_apdm + i)->dwFlags & MODE_INVALID) &&
((_apdm + i)->dwFlags & MODE_RAW))
{
pdm = (_apdm + i)->lpdm;
if (
((_pCurDevmode->dmFields & DM_BITSPERPEL) &&
(pdm->dmBitsPerPel == _pCurDevmode->dmBitsPerPel))
&&
((_pCurDevmode->dmFields & DM_PELSWIDTH) &&
(pdm->dmPelsWidth == _pCurDevmode->dmPelsWidth))
&&
((_pCurDevmode->dmFields & DM_PELSHEIGHT) &&
(pdm->dmPelsHeight == _pCurDevmode->dmPelsHeight))
&&
((_pCurDevmode->dmFields & DM_DISPLAYFREQUENCY) &&
(pdm->dmDisplayFrequency == _pCurDevmode->dmDisplayFrequency))
)
{
bCurrentAndPruned = TRUE;
break;
}
}
}
return bCurrentAndPruned;
}
DISPLAY_DEVICE dd;
HRESULT CDisplaySettings::SetMonitor(DWORD dwMonitor)
{
ZeroMemory(&dd, sizeof(DISPLAY_DEVICE));
dd.cb = sizeof(DISPLAY_DEVICE);
DWORD dwMon = 0;
for (DWORD dwCount = 0; EnumDisplayDevices(NULL, dwCount, &dd, 0); dwCount++)
{
if (!(dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER))
{
if (dwMon == dwMonitor)
{
InitSettings(&dd);
_fPrimary = (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE);
return S_OK;
}
dwMon++;
}
}
return E_INVALIDARG;
}
HRESULT CDisplaySettings::GetModeCount(DWORD* pdwCount, BOOL fOnlyPreferredModes)
{
DWORD cCount = 0;
for (DWORD i = 0; _apdm && (i < _cpdm); i++)
{
// Don't show invalid modes or raw modes if pruning is on;
if(!_IsModeVisible(i))
{
continue;
}
if(fOnlyPreferredModes && (!_IsModePreferred(i)))
{
continue;
}
cCount++;
}
*pdwCount = cCount;
return S_OK;
}
HRESULT CDisplaySettings::GetMode(DWORD dwMode, BOOL fOnlyPreferredModes, DWORD* pdwWidth, DWORD* pdwHeight, DWORD* pdwColor)
{
DWORD cCount = 0;
for (DWORD i = 0; _apdm && (i < _cpdm); i++)
{
// Don't show invalid modes or raw modes if pruning is on;
if(!_IsModeVisible(i))
{
continue;
}
if(fOnlyPreferredModes && (!_IsModePreferred(i)))
{
continue;
}
if (cCount == dwMode)
{
LPDEVMODE lpdm = (_apdm + i)->lpdm;
*pdwWidth = lpdm->dmPelsWidth;
*pdwHeight = lpdm->dmPelsHeight;
*pdwColor = lpdm->dmBitsPerPel;
return S_OK;
}
cCount++;
}
return E_INVALIDARG;
}
DEVMODE dm;
HRESULT CDisplaySettings::SetSelectedMode(HWND hwnd, DWORD dwWidth, DWORD dwHeight, DWORD dwColor, BOOL* pfApplied, DWORD dwFlags)
{
dm.dmBitsPerPel = dwColor;
dm.dmPelsWidth = dwWidth;
dm.dmPelsHeight = dwHeight;
dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
*pfApplied = FALSE;
POINT res = {dwWidth, dwHeight};
PLONGLONG freq = NULL;
int cFreq = GetFrequencyList(dwColor, &res, &freq);
if (cFreq)
{
dm.dmFields |= DM_DISPLAYFREQUENCY;
// Default to lowest frequency
dm.dmDisplayFrequency = (DWORD)freq[0];
// Try to find a good frequency
for (int i = cFreq - 1; i >= 0; i--)
{
if ((freq[i] >= 60) && (freq[i] <= 72))
{
dm.dmDisplayFrequency = (DWORD)freq[i];
}
}
}
LocalFree(freq);
ULONG dmSize = _pCurDevmode->dmSize + _pCurDevmode->dmDriverExtra;
PDEVMODE pOldDevMode = (LPDEVMODE) LocalAlloc(LPTR, dmSize);
if (pOldDevMode)
{
CopyMemory(pOldDevMode, _pCurDevmode, dmSize);
if (_ExactMatch(&dm, FALSE))
{
// Verify that the mode actually works
if (SaveSettings(CDS_TEST) == DISP_CHANGE_SUCCESSFUL)
{
// Update the registry to specify the new display settings
if (SaveSettings(CDS_UPDATEREGISTRY | CDS_NORESET) == DISP_CHANGE_SUCCESSFUL)
{
// Refresh the display info from the registry, if you update directly ChangeDisplaySettings will do weird things in the fringe cases
if (ChangeDisplaySettings(NULL, CDS_RAWMODE) == DISP_CHANGE_SUCCESSFUL)
{
if (IsKnownSafe())
{
// No need to warn, this is known to be a good value.
*pfApplied = TRUE;
}
else
{
INT_PTR iRet = DialogBoxParam(HINST_THISDLL,
MAKEINTRESOURCE((dwFlags & DS_BACKUPDISPLAYCPL) ? DLG_KEEPNEW2 : DLG_KEEPNEW3),
hwnd,
KeepNewDlgProc,
(dwFlags & DS_BACKUPDISPLAYCPL) ? 15 : 30);
if ((IDYES == iRet) || (IDOK == iRet))
{
*pfApplied = TRUE;
}
else
{
if (_ExactMatch(pOldDevMode, FALSE))
{
SaveSettings(CDS_UPDATEREGISTRY | CDS_NORESET);
ChangeDisplaySettings(NULL, CDS_RAWMODE);
}
if (dwFlags & DS_BACKUPDISPLAYCPL)
{
// Use shellexecuteex to run the display CPL
SHELLEXECUTEINFO shexinfo = {0};
shexinfo.cbSize = sizeof (shexinfo);
shexinfo.fMask = SEE_MASK_FLAG_NO_UI;
shexinfo.nShow = SW_SHOWNORMAL;
shexinfo.lpFile = L"desk.cpl";
ShellExecuteEx(&shexinfo);
}
}
}
}
}
}
}
LocalFree(pOldDevMode);
}
return S_OK;
}
HRESULT CDisplaySettings::GetSelectedMode(DWORD* pdwWidth, DWORD* pdwHeight, DWORD* pdwColor)
{
if (pdwWidth && pdwHeight && pdwColor)
{
if (_pCurDevmode)
{
*pdwWidth = _pCurDevmode->dmPelsWidth;
*pdwHeight = _pCurDevmode->dmPelsHeight;
*pdwColor = _pCurDevmode->dmBitsPerPel;
return S_OK;
}
else
{
return E_FAIL;
}
}
else
{
return E_INVALIDARG;
}
}
HRESULT CDisplaySettings::GetAttached(BOOL* pfAttached)
{
if (pfAttached)
{
*pfAttached = _fCurAttached;
return S_OK;
}
else
return E_INVALIDARG;
}
HRESULT CDisplaySettings::SetPruningMode(BOOL fIsPruningOn)
{
ASSERT (_bCanBePruned && !_bIsPruningReadOnly);
if (_bCanBePruned &&
!_bIsPruningReadOnly &&
((fIsPruningOn != 0) != _bIsPruningOn))
{
_bIsPruningOn = (fIsPruningOn != 0);
DWORD dwIsPruningOn = (DWORD)_bIsPruningOn;
RegSetValueEx(_hPruningRegKey,
SZ_PRUNNING_MODE,
NULL,
REG_DWORD,
(LPBYTE) &dwIsPruningOn,
sizeof(dwIsPruningOn));
//
// handle the special case when we pruned out the current mode
//
if(_bIsPruningOn && _IsCurDevmodeRaw())
{
//
// switch to the closest mode
//
_BestMatch(NULL, -1, TRUE);
}
}
return S_OK;
}
HRESULT CDisplaySettings::GetPruningMode(BOOL* pfCanBePruned, BOOL* pfIsPruningReadOnly, BOOL* pfIsPruningOn)
{
if (pfCanBePruned && pfIsPruningReadOnly && pfIsPruningOn)
{
*pfCanBePruned = _bCanBePruned;
*pfIsPruningReadOnly = _bIsPruningReadOnly;
*pfIsPruningOn = _bIsPruningOn;
return S_OK;
}
else
{
return E_INVALIDARG;
}
}
HRESULT CDisplaySettings_CreateInstance(IN IUnknown * punkOuter, IN REFIID riid, OUT LPVOID * ppvObj)
{
HRESULT hr = E_INVALIDARG;
if (!punkOuter && ppvObj)
{
CDisplaySettings * pThis = new CDisplaySettings();
*ppvObj = NULL;
if (pThis)
{
hr = pThis->QueryInterface(riid, ppvObj);
pThis->Release();
}
else
{
hr = E_OUTOFMEMORY;
}
}
return hr;
}
Reference in a new issue Copy permalink