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Qt grabWindow坐标从GetCursorPos和GetWindowRect
原标题:Qt grabWindow coordinates shifted from GetCursorPos and GetWindowRect

在Qt,当我使用QPixmap:grabWindow(hwnd,x,y,h,w)功能时,坐标会稍有变化,而使用窗户的坐标是GeCursorPos和GetWindowRect。

i.e. (0,0)从GetCursorPos和GetWindowRect的角度来看,位于窗户顶顶顶顶顶顶顶顶端的工具路障。

但是(0,0)QPixmap:grabWindow更“边”(即无视窗口框架)。

我如何能够使这2座坐标保持一致? 尤其是由于用户对窗口框架可能有不同的厚度?

问题回答

我同意Kotti......,如果你使用Qt,只用Qt电话。 你可能用QCursor取代对GetCursorPos的电话:pos()和GeWindowRect()与窗户和大地工业。

尽管如此,如果你must <>>>>>>> 直接打电话给视窗软件,你可以动态地在两个协调系统之间冲销,在每种照相机的对应功能中打上同样的功能,并相互抵消结果。 然后,你可以在必要时利用三角洲从一个协调系统向另一个协调系统翻译。 这样做会奏效,但会是一种痛苦,只有你绝对必须这样做。

我认为,最好的想法是只保留一种类型的坐标。 这样,你们就赢得了双面 yourself,并提出了诸如“如果这些坐标是从彩虹功能中得来的,那么”“我必须将这些坐标转换为第一类或第二类”。

Of course,我可能错了,但我倾向于认为,对你的评估,只有采用上述协调类型。





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