[Qt-interest] Changing drag/drop cursors whilst dragging

[Tim Edwards]

Hello,



I'm trying to find a way of changing the mouse cursor when you perform drag/drop operations since I want to give feedback to the user when they drag the object over different targets as to what will happen. I'm aware that you can set a cursor for 4 types under Windows, [Copy, Move, Link, Ignore], and that you can additionally set a QPixmap. While this works I find myself needing to change the cursor after the QDrag has called exec(), for various "Move" operations.



Having looked into the Win32 implementation, the DoDragDrop() Win function will call GiveFeedback() when the target changes. Looking at the QOleDropSource::GiveFeedback(...) class found in qdnd_win.cpp that function does indeed change the cursor via:



SetCursor(m_cursors[m_currentAction].handle());



Is there a way to hook into this? Or perhaps someone give me an alternative solution?



Kind regards,



Tim Edwards

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