A PropSheetProc function is an application-defined callback function that the system calls when the property sheet is being created and initialized.
int CALLBACK PropSheetProc(
| HWND hwndDlg, | // handle to the property sheet dialog box |
| UINT uMsg, | // message identifier |
| LPARAM lParam | // message parameter |
| ); |
Parameters
hwndDlg
Handle to the property sheet dialog box.
uMsg
Identifies the message being received. This parameter is one of the following values:
| Value | Meaning |
| PSCB_INITIALIZED | Indicates that the property sheet is being initialized. The lParam value is zero for this message. |
| PSCB_PRECREATE | Indicates that the property sheet is about to be created. The hwndDlg parameter is NULL and the lParam parameter is a pointer to a dialog template in memory. This template is in the form of a DLGTEMPLATE structure followed by one or more DLGITEMTEMPLATE structures. |
lParam
Specifies additional information about the message. The meaning of this value depends on the uMsg parameter.
Return Values
The function returns zero.
Remarks
To enable a PropSheetProc callback function, use the PROPSHEETHEADER structure when you call the PropertySheet function to create the property sheet. Use the pfnCallback member to specify a pointer to the callback function, and set the PSP_USECALLBACK flag in the dwFlags member.
PropSheetProc is a placeholder for the application-defined function name. The PFNPROPSHEETCALLBACK type is a pointer to a PropSheetProc callback function.
See Also
DLGTEMPLATE, DLGITEMTEMPLATE, PropertySheet, PROPSHEETHEADER