146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/* CB.C
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Resident Code Segment // Tweak: make non-resident
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Utility routines for checkboxes.
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Frosting: Master Theme Selector for Windows '95
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Copyright (c) 1994-1998 Microsoft Corporation
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*/
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// ---------------------------------------------
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// Brief file history:
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// Alpha:
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// Beta:
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// Bug fixes
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// ---------
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//
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// ---------------------------------------------
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#include "windows.h"
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#include "frost.h"
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#include "global.h"
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//
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// InitCheckboxes
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// Actually, you are init'ing the stored state of the checkboxes.
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// All from saved registry values initially; or just checked if no stored
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// values. This gets picked up on the first call to EnableThemeButtons().
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//
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void FAR InitCheckboxes()
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{
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extern TCHAR szPlus_CBs[];
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LONG lret;
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HKEY hKey;
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int iter;
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TCHAR szState[5];
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DWORD dwSize;
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DWORD dwType;
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// we're going to try to read from the registry
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lret = RegOpenKeyEx( HKEY_CURRENT_USER, szPlus_CBs,
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(DWORD)0, KEY_QUERY_VALUE, (PHKEY)&hKey );
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// check that you got a good key here
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if (lret == ERROR_SUCCESS) {
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// go through each checkbox and read stored state from registry
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for (iter = 0; iter < MAX_FCHECKS; iter ++) {
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// first do paranoid check of data size
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lret = RegQueryValueEx(hKey, (LPTSTR)szCBNames[iter], (LPDWORD)NULL,
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(LPDWORD)&dwType, (LPBYTE)NULL, (LPDWORD)&dwSize);
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if (ERROR_SUCCESS == lret) {
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// here's the size check before getting the data
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if (dwSize > ((DWORD)5 * sizeof(TCHAR))) {
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Assert(FALSE, TEXT("Large entry for checkbox state!\n"));
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lret = ERROR_SUCCESS - 5; // set error flag for check below
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}
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else
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//
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// now really get the value
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lret = RegQueryValueEx(hKey, (LPTSTR)szCBNames[iter], (LPDWORD)NULL,
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(LPDWORD)&dwType, (LPBYTE)szState, (LPDWORD)&dwSize);
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}
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//
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// if you got something, go ahead and use it to set checkbox state!
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//
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if (ERROR_SUCCESS == lret) {
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// invalid value defaults to TRUE/checked, so check for valid FALSE/unchecked
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bCBStates[iter] = (szState[0] == TEXT('0') ? FALSE : TRUE);
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}
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// otherwise, use ultimate error case
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else {
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Assert(FALSE, TEXT("couldn't read one of the checkbox states\n"));
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// always easy worst case default: just init to checked
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// Except for CB_SCHEDULE -- if it can't be read we want
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// to default to off.
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if (FC_SCHEDULE == iter) bCBStates[iter] = FALSE;
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else bCBStates[iter] = TRUE;
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}
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}
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// cleanup
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RegCloseKey(hKey);
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}
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else { // couldn't open key, so just set to checked
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Assert(FALSE, TEXT("problem opening Checkbox registry to init checkboxes\n"));
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for (iter = 0; iter < MAX_FCHECKS; iter ++) {
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if (FC_SCHEDULE == iter) bCBStates[iter] = FALSE;
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else bCBStates[iter] = TRUE;
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}
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}
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}
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//
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// Save/RestoreCheckboxes
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// Save/Restore the state of the checkboxes to/from the states array.
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// The checkbox ID array defines order saved in the states array.
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//
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// Globals: sets values in global bCBStates[] array.
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//
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void FAR SaveCheckboxes()
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{
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int iter;
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for (iter = 0; iter < MAX_FCHECKS; iter ++) {
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bCBStates[iter] = IsDlgButtonChecked(hWndApp, iCBIDs[iter]);
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}
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}
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//
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// Assumes caller has already enabled all the buttons so they can be checked.
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void FAR RestoreCheckboxes()
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{
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int iter;
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for (iter = 0; iter < MAX_FCHECKS; iter ++) {
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CheckDlgButton(hWndApp, iCBIDs[iter], bCBStates[iter]);
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}
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}
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// IsAnyBoxChecked()
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//
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// Returns TRUE if any of the theme setting checkboxes are checked.
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// We ignore the SCHEDULE checkbox setting.
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BOOL FAR IsAnyBoxChecked()
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{
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BOOL bRet = FALSE;
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int iter;
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for (iter = 0;
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(iter < MAX_FCHECKS) && !bRet;
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iter ++) {
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if (FC_SCHEDULE != iter)
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{
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bRet = bRet | IsDlgButtonChecked(hWndApp, iCBIDs[iter]);
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}
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}
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return (bRet);
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}
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