CWPRETSTRUCT structure (winuser.h)

Defines the message parameters passed to a WH_CALLWNDPROCRET hook procedure, HOOKPROC callback function.

Syntax

typedef struct tagCWPRETSTRUCT {
  LRESULT lResult;
  LPARAM  lParam;
  WPARAM  wParam;
  UINT    message;
  HWND    hwnd;
} CWPRETSTRUCT, *PCWPRETSTRUCT, *NPCWPRETSTRUCT, *LPCWPRETSTRUCT;

Members

lResult

Type: LRESULT

The return value of the window procedure that processed the message specified by the message value.

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 that processed the message specified by the message value.

Requirements

See also

HOOKPROC

Conceptual

Hooks

Reference

SetWindowsHookEx