Next, limit the mouse movement area to (100,100,200,200)
varrect:TRect;
begin
rect.Left:=100;
rect.Top:=100;
rect.Bottom:=200;
rect.Right:=200;
windows.ClipCursor(@rect);
The following restores the mouse movement area
windows.ClipCursor(0);
There is no need to give specific examples, it is very simple. Hee hee hee hee
The help in Delphi says this:
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.