wqmeng

Hello, Thank you all for your replies, Now I check the output in the IDE with a FMX form with a few buttons on it, and find out if the app hangs up, it will stop at Module Load: d2d1.dll. No Debug Info. Base Address: $78970000. Process TestWin11HangUp.exe (40248) Module Load: DWrite.dll. No Debug Info. Base Address: $5B760000. Process TestWin11HangUp.exe (40248) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (40248) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (40248) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (40248) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (40248) Thread Exit: Thread ID: 81372. Process TestWin11HangUp.exe (40248) If the App start correctly, Module Load: d2d1.dll. No Debug Info. Base Address: $78970000. Process TestWin11HangUp.exe (42448) Module Load: DWrite.dll. No Debug Info. Base Address: $5B760000. Process TestWin11HangUp.exe (42448) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (42448) Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (42448) Module Load: igdumdim32.dll. No Debug Info. Base Address: $78E90000. Process TestWin11HangUp.exe (42448) Module Load: igd9trinity32.dll. No Debug Info. Base Address: $79150000. Process TestWin11HangUp.exe (42448) Module Load: igd9dxva32.dll. No Debug Info. Base Address: $7A840000. Process TestWin11HangUp.exe (42448) The different is that the failed app try to get DirectX SharedMultithread object 4 times and without success? Finally, the app form do not shows up correctly. Debug Output: Cannot get DirectX SharedMultithread object. Process TestWin11HangUp.exe (40248) Try to find more information about 'Cannot get DirectX SharedMultithread object', cound not find any useful results. Thank you.