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

Reference

Definition

Namespace:: Microsoft.Win32

Assembly:: PresentationFramework.dll

Important

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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
nativeint

Window handle for the Win32 dialog.

msg: Int32

Windows message to be processed by the Win32 dialog.

wParam: IntPtr
nativeint

Parameters for dialog actions.

lParam: IntPtr
nativeint

Parameters for dialog actions.

Returns

IntPtr

nativeint

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

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