MSG Structure

The MSG structure contains message information from a thread's message queue.

typedef struct tagMSG {     // msg   
   HWND hwnd; 
   UINT message; 
   WPARAM wParam; 
   LPARAM lParam; 
   DWORD time; 
   POINT pt; 
} MSG;

Parameters

• hwnd
  Identifies the window whose window procedure receives the message.

• message
  Specifies the message number.

• wParam
  Specifies additional information about the message. The exact meaning depends on the value of the message member.

• lParam
  Specifies additional information about the message. The exact meaning depends on the value of the message member.

• time
  Specifies the time at which the message was posted.

• pt
  Specifies the cursor position, in screen coordinates, when the message was posted.

Requirements

Header: winuser.h

See Also

Other Resources

Structures, Styles, Callbacks, and Message Maps