Mapping cursor coordinate between QMainWindow and Screen
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Hi All,
I've met a problem while mapping cursor coordinates between QMainWindow and Screen.
When I maximized the window and move the cursor to the upper border of current window, I got the global cursor coordinate: (x, 0). After I called the QWidget::MapFromGlobal(), I got the local cursor coordinate: (x, 16). I suppose the y coordinate should also be "0"!
When the window is not maximized, I move the window so that the upper border align with upper screen, and could get the mapped coordinate I supposed. That is, the mapped local cursor coordinate is: (x, 0).
Could any one tell me why the cursor coordinate mapping mechanism is different while the window is maximized and normal. Thanks in advance!
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No one can tell me reason? Or, if the problem is confusing, I can re-explain it.
