ScreenToClient

This function converts the screen coordinates of a specified point on the screen to client coordinates.

BOOL ScreenToClient( 
HWND hWnd, 
LPPOINT lpPoint
); 

Parameters

• hWnd
  Handle to the window whose client area will be used for the conversion.
• lpPoint
  Long pointer to a POINT structure that contains the screen coordinates to be converted.

Return Values

Nonzero indicates success. Zero indicates failure.

To get extended error information, call GetLastError.

Remarks

The function uses the window identified by the hWnd parameter and the screen coordinates given in the POINT structure to compute client coordinates. It then replaces the screen coordinates with the client coordinates. The new coordinates are relative to the upper-left corner of the specified windows client area.

The ScreenToClient function assumes the specified point is in screen coordinates.

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

ClientToScreen, GetLastError, MapWindowPoints, POINT

 Last updated on Tuesday, July 13, 2004

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