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CSplash-Splash窗口类 [使用MFC的启动画面C ++类 [如何在Visual C ++中将闪屏添加到基于MFC对话框的应用程序中 [带有启动画面的对话框 [

Here you go:
CSplash - A Splash Window Class[^]
Splash Screen C++ Class using MFC[^]
How to add a splash screen to an MFC dialog-based application in Visual C++[^]
Dialog With Splash Screen[^]

您尝试过搜索 [ CSplashScreenEx:具有Alpha混合功能的非矩形启动画面类 [

Did you try search[^]?

There are some good ones in there.

I think I have used CSplashScreenEx : a non rectangular splash screen class with Alpha blending[^] before, quite some time ago. It was good.