CPythonGraphic::SaveScreenShot queues a readback of the next presented frame (ScreenShotHost -> VulkanWindow::request_frame); WriteScreenShot runs the rest of 40250's function verbatim (X8R8G8B8 rows, SaveJPEG, EXIF tag). jpeg_save is encoded with stb_image_write. SHGetSpecialFolderPath returns $HOME/Documents (else cwd); CreateDirectory/_access/jpeg_save accept '\\'. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>