Bug #3044 cap_dshow.cpp forgotten validity check fixed.

956d8027 · Alexander Smorkalov · 4cf7a963 · 956d8027
Commit 956d8027 authored Jun 10, 2013 by Alexander Smorkalov
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Showing with 4 additions and 2 deletions

cap_dshow.cpp modules/highgui/src/cap_dshow.cpp +4 -2

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--- a/modules/highgui/src/cap_dshow.cpp
+++ b/modules/highgui/src/cap_dshow.cpp
@@ -3195,8 +3195,10 @@ IplImage* CvCaptureCAM_DShow::retrieveFrame(int)
        frame = cvCreateImage( cvSize(w,h), 8, 3 );
    }

-    VI.getPixels( index, (uchar*)frame->imageData, false, true );
-    return frame;
+    if (VI.getPixels( index, (uchar*)frame->imageData, false, true ))
+        return frame;
+    else
+        return NULL;
 }

 double CvCaptureCAM_DShow::getProperty( int property_id )