MSG

This structure contains message information from a threads 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

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

GetMessage, GetTickCount, PeekMessage

 Last updated on Tuesday, July 13, 2004

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