ClientToScreen( )和ScreenToClient( )区别
2020-07-03 15:17
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ClientToScreen( )是把窗口坐标转换为屏幕坐标
ScreenToClient( )是把屏幕坐标转换为窗口坐标
屏幕坐标是相对于屏幕左上角的,而窗口坐标是相对于窗口用户区左上角的
VC下,有些函数使用窗口坐标,有些使用屏幕坐标,使用时要分清。
一个窗体分为两部分:系统区和客户区
象标题和菜单之类的是系统区,由系统来控制,客户区就是你的地盘喽!!!
Width, Height 是指整体的,ClientWidth, ClientHeight是指客户区的,两者相减就是
系统区的啦!!!
ClientToScreen是把坐标从当前窗体转化成全屏幕的!!!
ScreenToClient是把屏幕坐标转化成相对当前窗体的坐标!!!!
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