762 lines
21 KiB
C
762 lines
21 KiB
C
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#include "precomp.h"
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#pragma hdrstop
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/*****************************************************************************
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* *
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* SBUTTON.C *
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* *
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* Program Description: Implements "3-D" buttons *
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* *
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******************************************************************************
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* *
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* Revision History: Created by Todd Laney, Munged 3/27/89 by Robert Bunney *
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* 7/25/89 - revised by Chris Guzak for transparent *
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* color bitmaps. *
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* 7/26/89 - revised by Todd Laney to handle multi-res *
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* bitmaps. *
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* windows 3 support *
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* *
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*****************************************************************************/
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#define NOCOMM
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//
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// if WIN2 is defined the code will work in windows 2.x and windows 3.0
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// otherwise windows 3.0 is required
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//
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/*****************************************************************************
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* *
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* Defines *
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* *
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*****************************************************************************/
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#if DBG
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#define PRIV
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#else
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#define PRIV static
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#endif
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#define rgbWhite RGB(255,255,255)
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#define rgbBlack RGB(0,0,0)
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#define ISDIGIT(c) ((c) >= '0' && (c) <= '9')
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#define BEVEL 2
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#define FRAME 1
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#define GWW_HBM 0
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#define GWW_STATE GWW_HBM + sizeof(PVOID)
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#define GWW_FLAGS GWW_STATE + sizeof(DWORD)
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#define GWW_CHECK GWW_FLAGS + sizeof(DWORD)
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#define GWW_SIZE GWW_CHECK + sizeof(DWORD)
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#define GETSTYLE(hwnd) (LOWORD(GetWindowLong(hwnd,GWL_STYLE)))
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#define GETSTATE(hwnd) GetWindowLong(hwnd,GWW_STATE)
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#define GETFLAGS(hwnd) GetWindowLong(hwnd,GWW_FLAGS)
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#define GETCHECK(hwnd) GetWindowLong(hwnd,GWW_CHECK)
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#define GETHBM(hwnd) GetWindowLongPtr(hwnd,GWW_HBM)
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#define lpCreate ((LPCREATESTRUCT)lParam)
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#define DPSoa 0x00A803A9L
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#define DSPDxax 0x00E20746L
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#define EraseButton(hwnd,hdc,prc) ExtTextOut(hdc,0,0,ETO_OPAQUE,prc,NULL,0,NULL)
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#define NearestColor(hdc,rgb) (GetNearestColor(hdc,rgb) & 0x00FFFFFFL)
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/*****************************************************************************
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* *
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* Prototypes *
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* *
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*****************************************************************************/
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PRIV VOID DrawGrayButton (HWND, HDC, LPRECT, WORD, WORD);
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PRIV VOID DrawButtonFace (HWND, HDC, PRECT, WORD);
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PRIV BOOL PaintButton (HWND, HDC);
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PRIV VOID NotifyParent (HWND);
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PRIV VOID PatB (HDC, int, int, int, int, DWORD);
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PRIV HBITMAP LoadBitmapResource(HANDLE hInst, LPSTR lpName);
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PRIV VOID BitmapColorTranslate(HDC hdcBits, BITMAP* pbm, DWORD rgb);
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/*****************************************************************************
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* *
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* Variabls *
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* *
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*****************************************************************************/
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HBRUSH hbrGray = NULL; // Gray for text
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HBRUSH hbrFocus = NULL; // focus for text
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DWORD rgbButtonFocus;
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DWORD rgbButtonFace;
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DWORD rgbButtonText;
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DWORD rgbButtonShadow;
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PRIV char szColor[] = "Colors"; // Name of color section
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PRIV char szButton[] = "sbutton";
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/*---------------------------------------------------------------------------*\
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| ButtonControlInit( hInst ) |
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| Description: |
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| This is called when the application is first loaded into |
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| memory. It performs all button initialization. |
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| Arguments: |
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| hInst instance handle of current instance |
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| Returns: |
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| TRUE if successful, FALSE if not |
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\*----------------------------------------------------------------------------*/
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BOOL
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ButtonControlInit(
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IN HANDLE hInst
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)
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{
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WNDCLASS cls;
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UINT patGray[8];
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HBITMAP hbmGray;
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int i;
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HDC hdc;
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/* initialize the brushes */
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for (i=0; i<8; i+=2) {
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patGray[i] = 0x0000AAAA;
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patGray[i+1] = 0x00005555;
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}
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hbmGray = CreateBitmap(8, 8, 1, 1, (LPSTR)patGray);
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hbrGray = CreatePatternBrush(hbmGray);
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if (hbmGray) {
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DeleteObject(hbmGray);
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}
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hdc = GetDC(NULL);
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if (hdc) {
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rgbButtonFace = GetSysColor(COLOR_BTNFACE);
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rgbButtonShadow = GetSysColor(COLOR_BTNSHADOW);
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rgbButtonText = GetSysColor(COLOR_BTNTEXT);
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rgbButtonFocus = rgbWhite; // ??
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rgbButtonFace = NearestColor(hdc,rgbButtonFace);
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rgbButtonShadow = NearestColor(hdc,rgbButtonShadow);
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rgbButtonText = NearestColor(hdc,rgbButtonText);
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rgbButtonFocus = NearestColor(hdc,rgbButtonFocus);
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if (rgbButtonFocus == rgbButtonFace)
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rgbButtonFocus = rgbButtonText;
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ReleaseDC(NULL,hdc);
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}
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hbrFocus = CreateSolidBrush(rgbButtonFocus);
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cls.hCursor = LoadCursor(NULL,IDC_ARROW);
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cls.hIcon = NULL;
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cls.lpszMenuName = NULL;
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cls.lpszClassName = (LPSTR)szButton;
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cls.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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cls.hInstance = hInst;
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cls.style = CS_HREDRAW | CS_VREDRAW;
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cls.lpfnWndProc = fnButton;
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cls.cbClsExtra = 0;
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cls.cbWndExtra = GWW_SIZE;
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return(RegisterClass(&cls));
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}
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VOID
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ButtonControlTerm(
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VOID
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)
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{
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if (hbrGray)
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DeleteObject(hbrGray);
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if (hbrFocus)
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DeleteObject(hbrFocus);
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UnregisterClass(szButton,hInst);
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}
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/*----------------------------------------------------------------------------*\
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| Custom push-button |
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\*----------------------------------------------------------------------------*/
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PRIV BOOL PaintButton(HWND hwnd, HDC hdc)
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{
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WORD style;
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RECT rc;
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WORD f;
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HDC hdcMem;
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HBITMAP hbmMem,hbmT;
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GetClientRect(hwnd,&rc);
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if (!RectVisible(hdc,&rc))
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return TRUE;
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style = (WORD)((DWORD)GETSTYLE(hwnd) | ((DWORD)GETFLAGS(hwnd) & 0xFF00));
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f = (WORD)GETSTATE(hwnd);
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hdcMem = CreateCompatibleDC(hdc);
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hbmMem = CreateCompatibleBitmap(hdc,rc.right,rc.bottom);
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switch (LOBYTE(style))
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{
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case BS_PUSHBUTTON:
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case BS_DEFPUSHBUTTON:
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if (hdcMem && hbmMem)
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{
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hbmT = SelectObject(hdcMem,hbmMem);
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DrawGrayButton(hwnd, hdcMem, &rc, style, f);
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BitBlt(hdc,0,0,rc.right,rc.bottom,hdcMem,0,0,SRCCOPY);
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SelectObject(hdcMem,hbmT);
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}
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else
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{
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DrawGrayButton(hwnd, hdc, &rc, style, f);
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}
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break;
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}
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if (hbmMem)
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DeleteObject(hbmMem);
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if (hdcMem)
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DeleteDC(hdcMem);
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return TRUE;
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}
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/*******************
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**
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** Name: ButtonState
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**
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** Purpose: Compares the passed state (f) with the current state. If
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** they differ, the button is invalidated and TRUE is
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** is returned.
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**
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** Arguments: hwnd - window handle of the button
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** f - state to set
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**
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** Returns: TRUE iff the current state is different than f
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**
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*******************/
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BOOL ButtonState(HWND hwnd, WORD f)
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{
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WORD state;
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state = (WORD)GETSTATE(hwnd);
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if (state != f)
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{
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SetWindowLong(hwnd,GWW_STATE,f);
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InvalidateRect(hwnd,NULL,TRUE);
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UpdateWindow(hwnd);
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return TRUE;
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}
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return FALSE;
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}
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/*******************
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**
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** Name: fnButton
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**
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** Purpose: Window proc for buttons
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**
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** Arguments: Standard window proc
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**
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*******************/
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LRESULT APIENTRY fnButton(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
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{
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HANDLE hbm;
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PAINTSTRUCT ps;
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RECT rc;
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LONG l;
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switch (message)
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{
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case WM_CREATE:
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SetWindowLongPtr(hwnd,GWW_HBM,0);
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SetWindowLong(hwnd,GWW_STATE,0);
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SetWindowLong(hwnd,GWW_FLAGS,lpCreate->style & 0x0000FF00);
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SetWindowText(hwnd,lpCreate->lpszName);
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SetWindowLong(hwnd,GWL_STYLE,lpCreate->style & 0xFFFF00FF);
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break;
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case WM_LBUTTONDOWN:
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if (!IsWindowEnabled(hwnd))
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return 0L;
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if (GetCapture() != hwnd) /* ignore multiple DOWN's */
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{
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ButtonState(hwnd,TRUE);
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SetCapture(hwnd);
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if (!(GETFLAGS(hwnd) & BS_NOFOCUS))
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SetFocus(hwnd);
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}
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return 0L;
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case WM_MOUSEMOVE:
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if (GetCapture() == hwnd)
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{
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POINT point;
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point.x = (LONG)(LOWORD(lParam));
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point.y = (LONG)(HIWORD(lParam));
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GetClientRect(hwnd,&rc);
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ButtonState(hwnd,(WORD)PtInRect(&rc,point));
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}
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return 0L;
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case WM_LBUTTONUP:
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if (GetCapture() == hwnd)
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{
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ReleaseCapture();
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if (ButtonState(hwnd,FALSE))
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NotifyParent(hwnd);
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}
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return 0L;
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case WM_DESTROY:
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if (hbm = (HBITMAP)GETHBM(hwnd))
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DeleteObject(hbm);
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break;
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case WM_SETTEXT:
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if (hbm = (HBITMAP)GETHBM(hwnd))
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DeleteObject(hbm);
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if (*(LPSTR)lParam == '#')
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{
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hbm = LoadBitmapResource(
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(HINSTANCE)GetWindowLongPtr(hwnd,GWLP_HINSTANCE),
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(LPSTR)lParam+1
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);
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}
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else
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{
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hbm = NULL;
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}
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SetWindowLongPtr(hwnd,GWW_HBM,(LONG_PTR)hbm);
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InvalidateRect(hwnd,NULL,TRUE);
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break;
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case WM_ENABLE:
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case WM_KILLFOCUS:
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case WM_SETFOCUS:
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InvalidateRect(hwnd,NULL,TRUE);
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break;
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case WM_KEYDOWN:
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if (wParam == VK_SPACE && IsWindowEnabled(hwnd))
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ButtonState(hwnd,TRUE);
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break;
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case WM_KEYUP:
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case WM_SYSKEYUP:
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if (wParam == VK_SPACE && IsWindowEnabled(hwnd))
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{
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if (ButtonState(hwnd,FALSE))
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NotifyParent(hwnd);
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}
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break;
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case BM_GETSTATE:
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return((LONG)GETSTATE(hwnd));
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case BM_SETSTATE:
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if (ButtonState(hwnd,(WORD)wParam) && !wParam)
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// NotifyParent(hwnd);
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break;
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case BM_GETCHECK:
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return((LONG)GETCHECK(hwnd));
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case BM_SETCHECK:
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SetWindowLong(hwnd,GWW_CHECK,(DWORD)wParam);
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break;
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case BM_SETSTYLE:
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l = GetWindowLong(hwnd,GWL_STYLE);
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SetWindowLong(hwnd,GWL_STYLE,MAKELONG((WORD)wParam,HIWORD(l)));
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if (lParam)
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InvalidateRect(hwnd, NULL, TRUE);
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break;
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case WM_SETCURSOR:
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SetCursor(CurrentCursor);
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return(TRUE); // don't mess with cursor
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|
||
|
|
case WM_GETDLGCODE:
|
||
|
|
switch (LOBYTE(GETSTYLE(hwnd)))
|
||
|
|
{
|
||
|
|
case BS_DEFPUSHBUTTON:
|
||
|
|
wParam = DLGC_DEFPUSHBUTTON;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case BS_PUSHBUTTON:
|
||
|
|
wParam = DLGC_UNDEFPUSHBUTTON;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
wParam = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return((LONG)(wParam | DLGC_BUTTON));
|
||
|
|
|
||
|
|
case WM_ERASEBKGND:
|
||
|
|
return 0L;
|
||
|
|
|
||
|
|
case WM_PAINT:
|
||
|
|
BeginPaint(hwnd, &ps);
|
||
|
|
PaintButton(hwnd,ps.hdc);
|
||
|
|
EndPaint(hwnd, &ps);
|
||
|
|
return 0L;
|
||
|
|
}
|
||
|
|
return DefWindowProc(hwnd, message, wParam, lParam);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/* */
|
||
|
|
/* DrawGrayButton() - */
|
||
|
|
/* */
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
PRIV VOID DrawGrayButton(HWND hwnd,HDC hdc,RECT *lprc,WORD style,WORD fInvert)
|
||
|
|
{
|
||
|
|
RECT rc;
|
||
|
|
int dx,dy;
|
||
|
|
HBRUSH hbr;
|
||
|
|
int i;
|
||
|
|
int iFrame;
|
||
|
|
|
||
|
|
SetBkColor(hdc,GetSysColor(COLOR_WINDOW));
|
||
|
|
|
||
|
|
hbr = (HBRUSH)SendMessage(GetParent(hwnd), WM_CTLCOLORBTN, (WPARAM)hdc, (LONG_PTR)hwnd);
|
||
|
|
FillRect(hdc, lprc, hbr);
|
||
|
|
|
||
|
|
rc = *lprc;
|
||
|
|
dx = rc.right - rc.left;
|
||
|
|
dy = rc.bottom - rc.top;
|
||
|
|
|
||
|
|
iFrame = FRAME;
|
||
|
|
|
||
|
|
if (LOBYTE(style) == BS_DEFPUSHBUTTON)
|
||
|
|
iFrame *= 2;
|
||
|
|
|
||
|
|
PatB(hdc, rc.left , rc.top , dx , iFrame, rgbBlack);
|
||
|
|
PatB(hdc, rc.left , rc.bottom-iFrame, dx , iFrame, rgbBlack);
|
||
|
|
PatB(hdc, rc.left , rc.top+1 , iFrame, dy-2, rgbBlack);
|
||
|
|
PatB(hdc, rc.right-iFrame, rc.top+1 , iFrame, dy-2, rgbBlack);
|
||
|
|
|
||
|
|
InflateRect(&rc,-iFrame,-iFrame);
|
||
|
|
dx = rc.right - rc.left;
|
||
|
|
dy = rc.bottom - rc.top;
|
||
|
|
|
||
|
|
SetBkColor(hdc,rgbButtonFace);
|
||
|
|
EraseButton(hwnd,hdc,&rc);
|
||
|
|
|
||
|
|
if (fInvert)
|
||
|
|
{
|
||
|
|
PatB(hdc, rc.left, rc.top, 1,dy, rgbButtonShadow);
|
||
|
|
PatB(hdc, rc.left, rc.top, dx,1, rgbButtonShadow);
|
||
|
|
rc.left += BEVEL*2;
|
||
|
|
rc.top += BEVEL*2;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
for (i=0; i<BEVEL; i++)
|
||
|
|
{
|
||
|
|
PatB(hdc, rc.left, rc.top, 1,dy, rgbWhite);
|
||
|
|
PatB(hdc, rc.left, rc.top, dx,1, rgbWhite);
|
||
|
|
PatB(hdc, rc.right-1,rc.top+1, 1,dy-1, rgbButtonShadow);
|
||
|
|
PatB(hdc, rc.left+1, rc.bottom-1, dx-1,1,rgbButtonShadow);
|
||
|
|
|
||
|
|
InflateRect(&rc,-1,-1);
|
||
|
|
dx -= 2;
|
||
|
|
dy -= 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SetBkColor(hdc,rgbButtonFace);
|
||
|
|
|
||
|
|
if (GetFocus() == hwnd)
|
||
|
|
SetTextColor(hdc,rgbButtonFocus);
|
||
|
|
else
|
||
|
|
SetTextColor(hdc,rgbButtonText);
|
||
|
|
|
||
|
|
DrawButtonFace(hwnd,hdc,&rc,style);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************
|
||
|
|
**
|
||
|
|
** Name: DrawButtonFace
|
||
|
|
**
|
||
|
|
** Purpose: Responsible for the rendering of the text or bitmap on
|
||
|
|
** on a button.
|
||
|
|
**
|
||
|
|
** Arguments: hwnd - window handle of button
|
||
|
|
** hdc - hdc for window
|
||
|
|
** prc - clipping rect
|
||
|
|
** sytle - button style (push button or default pushbutton)
|
||
|
|
**
|
||
|
|
*******************/
|
||
|
|
|
||
|
|
|
||
|
|
PRIV VOID DrawButtonFace(HWND hwnd, HDC hdc, PRECT prc, WORD style)
|
||
|
|
{
|
||
|
|
RECT rc;
|
||
|
|
HBITMAP hbm;
|
||
|
|
HDC hdcBits;
|
||
|
|
BITMAP bm;
|
||
|
|
BOOL fMono;
|
||
|
|
|
||
|
|
rc = *prc;
|
||
|
|
|
||
|
|
SaveDC(hdc);
|
||
|
|
|
||
|
|
IntersectClipRect(hdc, prc->left, prc->top, prc->right, prc->bottom);
|
||
|
|
|
||
|
|
if ((hbm = (HBITMAP)GETHBM(hwnd)))
|
||
|
|
{
|
||
|
|
hdcBits = CreateCompatibleDC(hdc);
|
||
|
|
if (hdcBits) {
|
||
|
|
|
||
|
|
SelectObject(hdcBits,hbm);
|
||
|
|
GetObject(hbm,sizeof(bm),(LPSTR)&bm);
|
||
|
|
fMono = (bm.bmPlanes == 1) && (bm.bmBitsPixel == 1);
|
||
|
|
|
||
|
|
BitmapColorTranslate(hdcBits, &bm, rgbButtonFace);
|
||
|
|
|
||
|
|
if (!(style & BS_STRETCH))
|
||
|
|
{
|
||
|
|
// now center this thing on the button face
|
||
|
|
rc.left += (rc.right - rc.left - (signed)bm.bmWidth) / 2;
|
||
|
|
rc.top += (rc.bottom - rc.top - (signed)bm.bmHeight) / 2;
|
||
|
|
rc.right = rc.left + bm.bmWidth;
|
||
|
|
rc.bottom = rc.top + bm.bmHeight;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
SetStretchBltMode (hdc,fMono ? BLACKONWHITE : COLORONCOLOR);
|
||
|
|
|
||
|
|
if (IsWindowEnabled(hwnd))
|
||
|
|
{
|
||
|
|
StretchBlt(hdc,rc.left,rc.top,
|
||
|
|
rc.right - rc.left,
|
||
|
|
rc.bottom - rc.top,
|
||
|
|
hdcBits,0,0,
|
||
|
|
bm.bmWidth,bm.bmHeight, SRCCOPY);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
SetBkColor(hdc,rgbWhite);
|
||
|
|
SetTextColor(hdc,rgbBlack);
|
||
|
|
SelectObject(hdc,hbrGray);
|
||
|
|
StretchBlt(hdc,rc.left,rc.top,
|
||
|
|
rc.right - rc.left,
|
||
|
|
rc.bottom - rc.top,
|
||
|
|
hdcBits,0,0,
|
||
|
|
bm.bmWidth,bm.bmHeight, DPSoa);
|
||
|
|
}
|
||
|
|
DeleteDC(hdcBits);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
RestoreDC(hdc, -1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* using the first pixel as the "transparent" color, make all pixels
|
||
|
|
* in the hdc that are equal to the "transparent" color the passed
|
||
|
|
* color.
|
||
|
|
*/
|
||
|
|
PRIV VOID BitmapColorTranslate(HDC hdcBits, BITMAP* pbm, DWORD rgb)
|
||
|
|
{
|
||
|
|
HDC hdcMask;
|
||
|
|
HBITMAP hbmMask, hbmT;
|
||
|
|
HBRUSH hbrT;
|
||
|
|
BOOL fMono;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* is the bitmap mono, or the first pixel is already equal to the
|
||
|
|
* passed color? if so we have nothing to do.
|
||
|
|
*/
|
||
|
|
|
||
|
|
fMono = pbm->bmPlanes == 1 && pbm->bmBitsPixel == 1;
|
||
|
|
if (fMono || GetPixel(hdcBits, 0, 0) == rgb)
|
||
|
|
return;
|
||
|
|
|
||
|
|
// create a mask bitmap and associated DC
|
||
|
|
|
||
|
|
if ((hbmMask = CreateBitmap(pbm->bmWidth, pbm->bmHeight, 1, 1, NULL)))
|
||
|
|
{
|
||
|
|
hdcMask = CreateCompatibleDC(hdcBits);
|
||
|
|
|
||
|
|
// select the mask bitmap into the mono DC
|
||
|
|
|
||
|
|
hbmT = SelectObject(hdcMask, hbmMask);
|
||
|
|
|
||
|
|
// create the brush and select it into the bits DC
|
||
|
|
|
||
|
|
hbrT = SelectObject(hdcBits, CreateSolidBrush(rgb));
|
||
|
|
|
||
|
|
// do a color to mono bitblt to build the mask
|
||
|
|
// generate 1's where the source is equal to the background is
|
||
|
|
if (hdcMask) {
|
||
|
|
SetBkColor(hdcBits, GetPixel(hdcBits, 0, 0));
|
||
|
|
BitBlt(hdcMask, 0, 0, pbm->bmWidth, pbm->bmHeight, hdcBits, 0, 0, SRCCOPY);
|
||
|
|
|
||
|
|
// where the mask is 1 lay down the brush, where it is 0 leave the desitnation
|
||
|
|
|
||
|
|
SetBkColor(hdcBits, rgbWhite);
|
||
|
|
SetTextColor(hdcBits, rgbBlack);
|
||
|
|
BitBlt(hdcBits, 0, 0, pbm->bmWidth, pbm->bmHeight, hdcMask, 0, 0, DSPDxax);
|
||
|
|
|
||
|
|
DeleteObject(SelectObject(hdcBits, hbrT));
|
||
|
|
DeleteObject(SelectObject(hdcMask, hbmT));
|
||
|
|
|
||
|
|
DeleteDC(hdcMask);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************
|
||
|
|
**
|
||
|
|
** Name: NotifyParent
|
||
|
|
**
|
||
|
|
*******************/
|
||
|
|
|
||
|
|
PRIV VOID NotifyParent(HWND hwnd)
|
||
|
|
{
|
||
|
|
PostMessage(GetParent(hwnd),WM_COMMAND,MAKELONG(GetWindowLong(hwnd,GWL_ID),BN_CLICKED),(LONG_PTR)hwnd);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************
|
||
|
|
**
|
||
|
|
** Name: PatB
|
||
|
|
**
|
||
|
|
** Fast Solid color PatBlt() using ExtTextOut()
|
||
|
|
**
|
||
|
|
*******************/
|
||
|
|
|
||
|
|
PRIV VOID PatB(HDC hdc,int x,int y,int dx,int dy, DWORD rgb)
|
||
|
|
{
|
||
|
|
RECT rc;
|
||
|
|
|
||
|
|
SetBkColor(hdc,rgb);
|
||
|
|
rc.left = x;
|
||
|
|
rc.top = y;
|
||
|
|
rc.right = x + dx;
|
||
|
|
rc.bottom = y + dy;
|
||
|
|
|
||
|
|
ExtTextOut(hdc,0,0,ETO_OPAQUE,&rc,NULL,0,NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* LoadBitmapResource()
|
||
|
|
*
|
||
|
|
* load a bitmap from a resource file that is specific to a device.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
PRIV HBITMAP LoadBitmapResource(HANDLE hInst, LPSTR lpName)
|
||
|
|
{
|
||
|
|
char szName[80];
|
||
|
|
HBITMAP hbm;
|
||
|
|
DWORD nColors = 0;
|
||
|
|
DWORD dxScreen = 0;
|
||
|
|
DWORD dyScreen = 0;
|
||
|
|
HDC hdc;
|
||
|
|
|
||
|
|
hdc = GetDC(NULL);
|
||
|
|
|
||
|
|
if (hdc) {
|
||
|
|
|
||
|
|
nColors = GetDeviceCaps(hdc,NUMCOLORS);
|
||
|
|
dxScreen = GetSystemMetrics(SM_CXSCREEN);
|
||
|
|
dyScreen = GetSystemMetrics(SM_CYSCREEN);
|
||
|
|
|
||
|
|
ReleaseDC(NULL,hdc);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* look for a resource of the form WxHxC */
|
||
|
|
|
||
|
|
wsprintf(szName, "%s%dx%dx%d", lpName, dxScreen, dyScreen, nColors);
|
||
|
|
|
||
|
|
hbm = LoadBitmap(hInst,szName);
|
||
|
|
|
||
|
|
/* look for a resource of the form WxH */
|
||
|
|
|
||
|
|
if (!hbm)
|
||
|
|
{
|
||
|
|
wsprintf(szName,"%s%dx%d", lpName, dxScreen, dyScreen);
|
||
|
|
hbm = LoadBitmap(hInst,szName);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* look for the default resource name */
|
||
|
|
|
||
|
|
if (!hbm)
|
||
|
|
{
|
||
|
|
hbm = LoadBitmap(hInst,lpName);
|
||
|
|
}
|
||
|
|
|
||
|
|
return hbm;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
|
||
|
|
/*******************
|
||
|
|
**
|
||
|
|
** Name: FindGray
|
||
|
|
**
|
||
|
|
** Purpose: Responsible for finding (if possible) a dark gray
|
||
|
|
** on the curent device.
|
||
|
|
**
|
||
|
|
** Arguments: rgb - value for gray
|
||
|
|
**
|
||
|
|
** Returns: RGB value for dark gray
|
||
|
|
**
|
||
|
|
*******************/
|
||
|
|
|
||
|
|
DWORD FindGray(DWORD rgb)
|
||
|
|
{
|
||
|
|
int r,g,b;
|
||
|
|
HDC hdc;
|
||
|
|
|
||
|
|
hdc = GetDC(NULL);
|
||
|
|
|
||
|
|
rgb == NearestColor(hdc,rgb);
|
||
|
|
|
||
|
|
r = GetRValue(rgb);
|
||
|
|
g = GetGValue(rgb);
|
||
|
|
b = GetBValue(rgb);
|
||
|
|
|
||
|
|
while ((r>0 || g>0 || b>0) && rgb == NearestColor(hdc,RGB(r,g,b)))
|
||
|
|
{
|
||
|
|
if (r > 0) r -= 63;
|
||
|
|
if (g > 0) g -= 63;
|
||
|
|
if (b > 0) b -= 63;
|
||
|
|
}
|
||
|
|
|
||
|
|
rgb = NearestColor(hdc,RGB(r,g,b));
|
||
|
|
|
||
|
|
ReleaseDC(NULL,hdc);
|
||
|
|
return rgb;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|