Fixed cvDestroyAllWindows() without windows in QT (#2440)

3c878798 · Ilya Lysenkov · 56fbcc54 · 3c878798
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

modules/highgui/src/window_QT.cpp modules/highgui/src/window_QT.cpp +1 -1

未找到文件。
--- a/modules/highgui/src/window_QT.cpp
+++ b/modules/highgui/src/window_QT.cpp
@@ -499,7 +499,7 @@ CV_IMPL void cvDestroyWindow(const char* name)
 CV_IMPL void cvDestroyAllWindows()
 {
    if (!guiMainThread)
-        CV_Error( CV_StsNullPtr, "NULL guiReceiver (please create a window)" );
+        return;

    QMetaObject::invokeMethod(guiMainThread,
        "destroyAllWindow",