CreateDialog info  Overview  Group

The CreateDialog macro creates a modeless dialog box from a dialog box template resource. The CreateDialog macro uses the CreateDialogParam function.

HWND CreateDialog(

Parameters

hInstance

Identifies an instance of the module whose executable file contains the dialog box template.

lpTemplate

Identifies the dialog box template. This parameter is either the pointer to a null-terminated character string that specifies the name of the dialog box template or an integer value that specifies the resource identifier of the dialog box template. If the parameter specifies a resource identifier, its high-order word must be zero and its low-order word must contain the identifier. You can use the MAKEINTRESOURCE macro to create this value.

hWndParent

Identifies the window that owns the dialog box.

lpDialogFunc

Points to the dialog box procedure. For more information about the dialog box procedure, see DialogProc.

Return Values

If the function succeeds, the return value is the handle to the dialog box.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

Remarks

The CreateDialog function uses the CreateWindowEx function to create the dialog box. CreateDialog 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, CreateDialog returns the window handle to the dialog box.

After CreateDialog 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.

See Also

CreateDialogIndirect, CreateDialogIndirectParam, CreateDialogParam, CreateWindowEx, DestroyWindow, DialogBox, DialogProc, ShowWindow, WM_INITDIALOG, WM_SETFONT

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