clean up

windows-snapshot-tool/src/main.cpp

@@ -430,6 +430,12 @@ 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;
 }