Hi Windows gurus,
Is anyone using the Windows API “ChangeWindowMessageFilterEx()” to allow the drag and drop of items from a user’s desktop to a Xojo app being run as Administrator?
Here’s the MS doc for the API:
BOOL WINAPI ChangeWindowMessageFilterEx( _In_ HWND hWnd, _In_ UINT message, _In_ DWORD action, _Inout_opt_ PCHANGEFILTERSTRUCT pChangeFilterStruct );
I believe that it will solve a problem that I face when running back-end tasks with elevated permissions. Specifically, my tasks must run as Administrator / Local System to access raw devices. If I run the task elevated, it can no longer communicate with the GUI. However, if I run the GUI as Administrator, the user can no longer drag and drop from the desktop.
In this, should the hWnd be the handle for the app’s parent window, or the drop target (Listbox, TextArea, etc.)?