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WM_INITDIALOG

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Windows Embedded CE 6.0 R3

4/8/2010

This message is sent to the dialog box procedure immediately before a dialog box is displayed. Dialog box procedures typically use this message to initialize controls and carry out any other initialization tasks that affect the appearance of the dialog box.

Syntax

WM_INITDIALOG hwndFocus = (HWND) wParam;
    lInitParam = lParam;

Parameters

  • hwndFocus
    Handle to the control to receive the default keyboard focus. The system assigns the default keyboard focus only if the dialog box procedure returns TRUE.

Return Value

The dialog box procedure should return TRUE to direct the system to set the keyboard focus to the control given by hwndFocus. Otherwise, it should return FALSE to prevent the system from setting the default keyboard focus.

The dialog box procedure should return the value directly. The DWL_MSGRESULT value set by the SetWindowLong function is ignored.

Remarks

The control to receive the default keyboard focus is always the first control in the dialog box that is visible, not disabled, and that has the WS_TABSTOP style. When the dialog box procedure returns TRUE, the system checks the control to ensure that the procedure has not disabled it. If it has been disabled, the system sets the keyboard focus to the next control that is visible, not disabled, and has the WS_TABSTOP.

An application can return FALSE only if it has set the keyboard focus to one of the controls of the dialog box.

Requirements

Header winuser.h
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

CreateDialogIndirectParam
CreateDialogParam
DialogBoxIndirectParam
DialogBoxParam
SetFocus
SetWindowLong
PROPSHEETPAGE
Dialog Boxes Messages