The CreateDialogParam function creates a modeless dialog box from a dialog box template resource. Before displaying the dialog box, the function passes an application-defined value to the dialog box procedure as the lParam parameter of the the WM_INITDIALOG message. An application can use this value to initialize dialog box controls.
HWND CreateDialogParam(
HINSTANCE hInstance, |
// handle to application instance |
LPCTSTR lpTemplateName, |
// identifies dialog box template |
HWND hWndParent, |
// handle to owner window |
DLGPROC lpDialogFunc, |
// pointer to dialog box procedure |
LPARAM dwInitParam |
// initialization value |
); |
If the function succeeds, the return value is the window handle to the dialog box.
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
The CreateDialogParam function uses the CreateWindowEx function to create the dialog box. CreateDialogParam then sends a WM_INITDIALOG message (and a WM_SETFONT message if the template specifies the DS_SETFONT style) to the dialog box procedure. The function displays the dialog box if the template specifies the WS_VISIBLE style. Finally, CreateDialogParam returns the window handle of the dialog box.
After CreateDialogParam returns, the application displays the dialog box (if it is not already displayed) by using the ShowWindow function. The application destroys the dialog box by using the DestroyWindow function.
Windows 95: The system can support a maximum of 16,364 window handles.
CreateDialog, CreateDialogIndirect, CreateDialogIndirectParam, CreateWindowEx, DestroyWindow, DialogProc, MAKEINTRESOURCE, ShowWindow, WM_INITDIALOG, WM_SETFONT
See:
file: /Techref/os/win/api/win32/func/src/f08_16.htm, 5KB, , updated: 2001/6/26 11:22, local time: 2024/9/2 03:31,
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