HWND CreateDialogParam(hInstance,lpTemplateName,hWndParent,lpDialogFunc,dwInitParam)
This function creates a modeless dialog box, sends a WM_INITDIALOG message to the dialog function before displaying the dialog box, and passes dwInitParam as the message lParam. This message allows the dialog function to initialize the dialog-box controls. Otherwise, this function is identical to the CreateDialog function.
For more information on creating a modeless dialog box, see the description of the
CreateDialog function.
| Parameter | Type/Description | |
| hInstance | HANDLE Identifies an instance of the module whose executable file contains the dialog-box template. | |
| lpTemplateName | LPSTR Points to a character string that names the dialog-box template. The string must be a null-terminated character string. | |
| hWndParent | HWND Identifies the window that owns the dialog box. | |
| lpDialogFunc | FARPROC Is the procedure-instance address for the dialog function. For details, see the “Comments” section of the CreateDialog function. | |
| dwInitParam | DWORD Is a 32-bit value which CreateDialogParam passes to the dialog function when it creates the dialog box. |
The return value is the window handle of the dialog box. It is –1 if the function cannot create the dialog box.