Resolves a wm_dropfiles message that cannot be responded to when UAC is turned on Win7

1 // Run as Administrator, the program window will be able to receive the drag-and-drop file message "Wm_dropfiles".  2    Changewndmessagefilterok (Wm_dropfiles, msgflt_add); 3     Changewndmessagefilterok (0x0049, msgflt_add);        // 0x0049 = = Wm_copyglobaldata

1 bool Cxxxframewnd::changewndmessagefilterok (UINT nmessage, bool ballow)2 {3typedef BOOL (WINAPI *CHANGEWINDOWMESSAGEFILTEROKFN) (UINT, DWORD);4 5Hmodule HModUser32 =NULL;6HModUser32 = LoadLibrary (_t ("user32.dll"));7     if(HModUser32 = =NULL) {8         returnFALSE;9     }Ten  OneCHANGEWINDOWMESSAGEFILTEROKFN Pfnchangewindowmessagefilter = (CHANGEWINDOWMESSAGEFILTEROKFN) GetProcAddress ( HModUser32,"Changewindowmessagefilter"); A     if(Pfnchangewindowmessagefilter = =NULL) -     { - FreeLibrary (HMODUSER32); the         returnFALSE; -     } -  - FreeLibrary (HMODUSER32); +  -     returnPfnchangewindowmessagefilter (nmessage, ballow?)msgflt_add:msgflt_remove); +}

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Resolves a wm_dropfiles message that cannot be responded to when UAC is turned on Win7