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LRN authored
Instead of using a boolean to indicate a modal operation being in progress, use a set of flags, and allow these to be set and unset independently. Specifically, this allows WM_CAPTURECHANGED handler to only act when a drag-move or drag-resize modal operation is in progress, and ignore DND (which can also cause WM_CAPTURECHANGED to be posted). This avoids a crash due to assertion failure when OLE2 DND code tries to end a modal operation that was already ended by the WM_CAPTURECHANGED handler. https://bugzilla.gnome.org/show_bug.cgi?id=786121
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