| BOOL ClipCursor(lprc) | |||||
| CONST RECT *lprc; | /* address of structure with rectangle | */ | |||
The ClipCursor function confines the cursor to a rectangle 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.
lprc
Points to a 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. The RECT structure has the following form:
typedef struct tagRECT { /* rc */
LONG left;
LONG top;
LONG right;
LONG bottom;
} RECT;
The return value is TRUE if the function was successful, or FALSE if an error occurred. Use the GetLastError function to obtain extended error information.
The cursor is a shared resource. An application that has confined the cursor to a given rectangle must free it before relinquishing control to another application.
GetClipCursor, GetCursorPos, SetCursorPos