diff --git a/AppleWin/source/Applewin.cpp b/AppleWin/source/Applewin.cpp
index 0fd0f73e..9d0895aa 100644
--- a/AppleWin/source/Applewin.cpp
+++ b/AppleWin/source/Applewin.cpp
@@ -677,7 +677,7 @@ void AppleWin_RegisterHotKeys(void)
 		VK_SNAPSHOT		  // UINT vk = PrintScreen
 	);
 
-	if (! bStatus)
+	if (!bStatus && g_bShowPrintScreenWarningDialog)
 	{
 		MessageBox( g_hFrameWindow, "Unable to capture PrintScreen key", "Warning", MB_OK );
 	}
@@ -827,6 +827,10 @@ int APIENTRY WinMain(HINSTANCE passinstance, HINSTANCE, LPSTR lpCmdLine, int)
 		{
 			g_bDisplayPrintScreenFileName = true;
 		}
+		else if (strcmp(lpCmdLine, "-no-printscreen-dlg") == 0)		// Turn off the PrintScreen warning message dialog (if PrintScreen key can't be grabbed)
+		{
+			g_bShowPrintScreenWarningDialog = false;
+		}
 		else if (strcmp(lpCmdLine, "-spkr-inc") == 0)
 		{
 			lpCmdLine = GetCurrArg(lpNextArg);
diff --git a/AppleWin/source/Video.cpp b/AppleWin/source/Video.cpp
index 83e52f18..ed527170 100644
--- a/AppleWin/source/Video.cpp
+++ b/AppleWin/source/Video.cpp
@@ -362,6 +362,7 @@ static bool bVideoScannerNTSC = true;  // NTSC video scanning (or PAL)
 	void V_CreateLookup_MonoHiRes_Colorize ();
 
 	bool g_bDisplayPrintScreenFileName = false;
+	bool g_bShowPrintScreenWarningDialog = true;
 	void Util_MakeScreenShotFileName( char *pFinalFileName_ );
 	bool Util_TestScreenShotFileName( const char *pFileName );
 	// true  = 280x192
diff --git a/AppleWin/source/Video.h b/AppleWin/source/Video.h
index 2d197e35..9784d09b 100644
--- a/AppleWin/source/Video.h
+++ b/AppleWin/source/Video.h
@@ -123,6 +123,8 @@ bool UpdateHiResCell (int x, int y, int xpixel, int ypixel, int offset);
 bool UpdateDHiResCell (int x, int y, int xpixel, int ypixel, int offset);
 
 extern bool g_bDisplayPrintScreenFileName;
+extern bool g_bShowPrintScreenWarningDialog;
+
 void Video_ResetScreenshotCounter( char *pDiskImageFileName );
 enum VideoScreenShot_e
 {