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MSG

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This structure contains message information from a thread's message queue.

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

Members

  • hwnd
    Handle to the window whose window procedure receives the message.
  • message
    Specifies the message identifier.
  • 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.

Remarks

On Windows CE–based devices that use a stylus and touch screen instead of a mouse, the pt member contains the coordinates of the last position touched on the screen, rather than the coordinates of the current cursor position.

If you need mouse cursor support in your application, use the Windows CE Iconcurs component rather than the Windows CE Icon component and the Windows CE Mcursor component rather than the Windows CE Cursor component.

The time member is the number of milliseconds since a cold or warm boot on a device. It is the value returned by the GetTickCount function. Not included is the time that a device is in suspend mode.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.

See Also

Message Queue Structures | GetMessage | GetTickCount | PeekMessage

Last updated on Wednesday, April 13, 2005

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