CommonDialog.HookProc(IntPtr, Int32, IntPtr, IntPtr) Method

Reference

Definition

Namespace:: Microsoft.Win32

Assembly:: PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Defines the common dialog box hook procedure that is overridden to add specific functionality to a common dialog box.

protected:
 virtual IntPtr HookProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam);

[System.Security.SecurityCritical]
protected virtual IntPtr HookProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam);

protected virtual IntPtr HookProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam);

[<System.Security.SecurityCritical>]
abstract member HookProc : nativeint * int * nativeint * nativeint -> nativeint
override this.HookProc : nativeint * int * nativeint * nativeint -> nativeint

abstract member HookProc : nativeint * int * nativeint * nativeint -> nativeint
override this.HookProc : nativeint * int * nativeint * nativeint -> nativeint

Protected Overridable Function HookProc (hwnd As IntPtr, msg As Integer, wParam As IntPtr, lParam As IntPtr) As IntPtr

Parameters

hwnd: IntPtr

Window handle for the Win32 dialog.

msg: Int32

Windows message to be processed by the Win32 dialog.

wParam: IntPtr

Parameters for dialog actions.

lParam: IntPtr

Parameters for dialog actions.

Returns

IntPtr

Always returns Zero.

Attributes: SecurityCriticalAttribute

Remarks

HookProc handles dialog initialization by centering the dialog window, relative to the screen, and to set focus to the default control.

Applies to

Product	Versions
.NET Framework	3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

Share via