How to set the area / rectangle in which the cursor is allowed to move?

Question

eg. when you get to the side of the monitor, your cursor cannot go any further, and, moreover, the example is when in the microsoft paint, and you select a color from the RGB table, this will not allow your mouse to go beyond the rectangle until your mouse works.

My question is how to implement this in C ++ using win32 api?

Answer 1

You can use the following function from Microsoft

BOOL WINAPI ClipCursor(
  __in_opt  const RECT *lpRect
); 

See http://msdn.microsoft.com/en-us/library/ms648383(VS.85).aspx

Answer 2

ClipCursor. , . ( , ), NULL .

Answer 3

If you want to do this in a cross-platform way, you can try this library .