New subject: [Bug 58135] Drag&Drop: Wrong WM_DROPFILES sent to the top level window when dropping a file into ChildView

April 21, 2025

      http://bugs.winehq.org/show_bug.cgi?id=58135

            Bug ID: 58135
           Summary: Drag&Drop: Wrong WM_DROPFILES sent to the top level
                    window when dropping a file into ChildView
           Product: Wine
           Version: 10.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: wine-bugs(a)winehq.org
          Reporter: axis6404(a)proton.me
      Distribution: ---

Created attachment 78411
  --> http://bugs.winehq.org/attachment.cgi?id=78411
test(exe+src)

Wrong WM_DROPFILES sent to the top level window when dropping a file into
ChildView.

X11
debian bookworm x64
wine10.6

MainFrame window  <-- WM_DROPFILES is sent here
  |
  ----ChildView window (Only DragAcceptFiles())  <-- Drop txt file from KDE
desktop into this view. WM_DROPFILES will never come to the WndProc of this
child view.

Drop2.exe's result:
Windows - MsgBox(_T("OK! ChildView"), _T("ChildView"), MB_OK);
//OnDropFiles(a)Drop2View.h@line 49
Linux(wine10.6) - MsgBox(_T("Failed!!!! MainFrame"), _T("!!!!MainFrame's
Handler!!!!"), MB_OK); //OnDropFiles(a)MainFrame.h@line 43

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[Bug 58135] New: Drag&Drop: Wrong WM_DROPFILES sent to the top level window when dropping a file into ChildView

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