clean up

windows-snapshot-tool/src/main.cpp

@@ -431,6 +431,12 @@ int CaptureImage(HWND hWnd, const wchar_t* filename) {
     //Close the handle for the file that was created
     CloseHandle(hFile);
 
+    // clean up
+    DeleteObject(hbmScreen);
+    DeleteObject(hdcMemDC);
+    ReleaseDC(NULL,hdcScreen);
+    ReleaseDC(hWnd,hdcWindow);
+       
     return 0;
 }