The ScreenSaverConfigureDialog function receives messages sent to a screen saver’s configuration dialog box. A screen saver that allows user configuration must define this function.
BOOL ScreenSaverConfigureDialog(
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HWND hDlg, |
// handle of dialog box |
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UINT message, |
// message |
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WPARAM wParam, |
// first message parameter |
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LPARAM lParam |
// second message parameter |
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); |
If the function processes the message, it should return TRUE; otherwise, it should return FALSE, except in response to a WM_INITDIALOG message. In response to a WM_INITDIALOG message, ScreenSaverConfigureDialog should return FALSE if it calls the SetFocus function to set the keyboard focus to one of the controls in the dialog box. Otherwise, the function should return TRUE, in which case the system sets the keyboard focus to the first control in the dialog box that can be given the focus.
The dialog box template for the configuration dialog box must have the DLG_SCRNSAVECONFIGURE identifier.
The dialog box procedure is used only if the application specifies the default window class (WC_DIALOG) for the dialog box. The application uses the default class if no explicit class is given in the dialog box template. Although the dialog box procedure is similar to a window procedure, it must not call the DefWindowProc function to process unwanted messages. Unwanted messages are processed internally by the default dialog box procedure.
The ScreenSaverConfigureDialog function must be exported by including it in the EXPORTS statement in the application’s module-definition (.DEF) file.