http://bugs.winehq.org/show_bug.cgi?id=36989
--- Comment #4 from Hao Peng penghao@linuxdeepin.com --- I found another app with the same problem. The app try to draw the window with png format image, but failed and resulted in white blank window.
fixme:wincodecs:PngDecoder_Block_GetCount stub fixme:wincodecs:PngDecoder_Block_GetReaderByIndex stub