ScreenToClient
The ScreenToClient
function converts the screen coordinates of a specified point on the screen to
client coordinates.
BOOL ScreenToClient(
|
HWND hWnd, |
// window handle
for source coordinates |
|
LPPOINT lpPoint |
// address of
structure containing coordinates |
|
); |
|
Parameters
hWnd
Identifies
the window whose client area will be used for the conversion.
lpPoint
Points to a POINT structure that contains the
screen coordinates to be converted.
Return Values
If the
function succeeds, the return value is nonzero.
If the
function fails, the return value is zero.
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 window s
client area.
The ScreenToClient
function assumes the specified point is in screen coordinates.
See Also