如何设置允许光标移动的区域/矩形？ [英] How to set the area/rectangle in which the cursor is allowed to move?

问题描述

例如当你碰到显示器的一面时，你的光标不能再进一步，更多的例子是当在微软绘画，而你从RGB表中选择一种颜色，它不会允许你的鼠标走出去

b 我的问题是，如何在c ++中用win32 api实现？

解决方案

您可以使用Microsoft的以下函数

  BOOL WINAPI ClipCursor $ b __in_opt const RECT * lpRect 
）; 
  

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

E.g. when you hit the side of your monitor your cursor can't go any further, and more of an example is when in microsoft paint, and your choosing a colour from the RGB table, it won't allow your mouse to go outside of the rectangle while your mouse is down..

my question is how would you implement that in c++ with win32 api?

解决方案

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

这篇关于如何设置允许光标移动的区域/矩形？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！