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CWPSTRUCT structure

Defines the message parameters passed to a WH_CALLWNDPROC hook procedure, CallWndProc.

Syntax


typedef struct tagCWPSTRUCT {
  LPARAM lParam;
  WPARAM wParam;
  UINT   message;
  HWND   hwnd;
} CWPSTRUCT, *PCWPSTRUCT, *LPCWPSTRUCT;

Members

lParam

Type: LPARAM

Additional information about the message. The exact meaning depends on the message value.

wParam

Type: WPARAM

Additional information about the message. The exact meaning depends on the message value.

message

Type: UINT

The message.

hwnd

Type: HWND

A handle to the window to receive the message.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winuser.h (include Windows.h)

See also

Reference
CallWndProc
SetWindowsHookEx
Conceptual
Hooks

 

 

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