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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-04-03 08:29:34 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-04-08 23:53:42 +0200 |
| commit | 409c0f79be069cd2cf3bdb31ddbbafd938f15791 (patch) | |
| tree | 08751fda0dc30f80c8d65ba9f1a569f766870c53 /src/Common/Dlgcode.c | |
| parent | 09b22c175bad8140d5781571f0b5e52f7c16b367 (diff) | |
| download | VeraCrypt-409c0f79be069cd2cf3bdb31ddbbafd938f15791.tar.gz VeraCrypt-409c0f79be069cd2cf3bdb31ddbbafd938f15791.zip | |
Windows: allow drag-n-drop of files and receiving Explorer restart message when VeraCrypt running as elevated process.
Diffstat (limited to 'src/Common/Dlgcode.c')
| -rw-r--r-- | src/Common/Dlgcode.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/Common/Dlgcode.c b/src/Common/Dlgcode.c index 2cf5bb8e..749caa40 100644 --- a/src/Common/Dlgcode.c +++ b/src/Common/Dlgcode.c @@ -248,6 +248,9 @@ typedef LSTATUS (STDAPICALLTYPE *SHDeleteKeyWPtr)(HKEY hkey, LPCWSTR pszSubKey); typedef HRESULT (STDAPICALLTYPE *SHStrDupWPtr)(LPCWSTR psz, LPWSTR *ppwsz);
+// ChangeWindowMessageFilter
+typedef BOOL (WINAPI *ChangeWindowMessageFilterPtr) (UINT, DWORD);
+
ImageList_CreatePtr ImageList_CreateFn = NULL;
ImageList_AddPtr ImageList_AddFn = NULL;
@@ -257,6 +260,7 @@ SetupInstallFromInfSectionWPtr SetupInstallFromInfSectionWFn = NULL; SetupOpenInfFileWPtr SetupOpenInfFileWFn = NULL;
SHDeleteKeyWPtr SHDeleteKeyWFn = NULL;
SHStrDupWPtr SHStrDupWFn = NULL;
+ChangeWindowMessageFilterPtr ChangeWindowMessageFilterFn = NULL;
/* Windows dialog class */
#define WINDOWS_DIALOG_CLASS L"#32770"
@@ -265,6 +269,16 @@ SHStrDupWPtr SHStrDupWFn = NULL; #define TC_DLG_CLASS L"VeraCryptCustomDlg"
#define TC_SPLASH_CLASS L"VeraCryptSplashDlg"
+/* constant used by ChangeWindowMessageFilter calls */
+#ifndef MSGFLT_ADD
+#define MSGFLT_ADD 1
+#endif
+
+/* undocumented message sent during drag-n-drop */
+#ifndef WM_COPYGLOBALDATA
+#define WM_COPYGLOBALDATA 0x0049
+#endif
+
/* Benchmarks */
#ifndef SETUP
@@ -2603,6 +2617,19 @@ void InitApp (HINSTANCE hInstance, wchar_t *lpszCommandLine) if (!SHDeleteKeyWFn || !SHStrDupWFn)
AbortProcess ("INIT_DLL");
+ if (IsOSAtLeast (WIN_VISTA))
+ {
+ /* Get ChangeWindowMessageFilter used to enable some messages bypasss UIPI (User Interface Privilege Isolation) */
+ ChangeWindowMessageFilterFn = (ChangeWindowMessageFilterPtr) GetProcAddress (GetModuleHandle (L"user32.dll"), "ChangeWindowMessageFilter");
+
+#ifndef SETUP
+ /* enable drag-n-drop when we are running elevated */
+ AllowMessageInUIPI (WM_DROPFILES);
+ AllowMessageInUIPI (WM_COPYDATA);
+ AllowMessageInUIPI (WM_COPYGLOBALDATA);
+#endif
+ }
+
/* Save the instance handle for later */
hInst = hInstance;
@@ -11575,3 +11602,11 @@ void ProcessEntropyEstimate (HWND hProgress, DWORD* pdwInitialValue, DWORD dwCou 0);
}
}
+
+void AllowMessageInUIPI (UINT msg)
+{
+ if (ChangeWindowMessageFilterFn)
+ {
+ ChangeWindowMessageFilterFn (msg, MSGFLT_ADD);
+ }
+}
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