ClipCursor

The ClipCursor function confines the cursor to a rectangular area on the screen. If a subsequent cursor position (set by the SetCursorPos function or the mouse) lies outside the rectangle, Windows automatically adjusts the position to keep the cursor inside the rectangular area.

BOOL ClipCursor(

CONST RECT *lpRect	// pointer to structure with rectangle
);

Parameters

lprc

Points to the RECT structure that contains the screen coordinates of the upper-left and lower-right corners of the confining rectangle. If this parameter is NULL, the cursor is free to move anywhere on the screen.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The cursor is a shared resource. If an application confines the cursor, it must release the cursor by using ClipCursor before relinquishing control to another application.

The calling process must have WINSTA_WRITEATTRIBUTES access to the window station.

See Also

GetClipCursor, GetCursorPos, RECT, SetCursorPos

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