MSG

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

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

Syntax

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 Embedded 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 Embedded CE Iconcurs component rather than the Windows Embedded CE Icon component and the Windows Embedded CE Mcursor component rather than the Windows Embedded 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

See Also

Reference

Message Queue Structures
GetMessage
PeekMessage

Other Resources

GetTickCount