对话框没有创建WinAPI。

If I create a child window (In this case window "About") to the main window, the dialog box for some reason is not called. If you do not the child window is a dialog box called normal and works fine. GetLastError returns the error number 1812 (The specified image file did not contain a resource section.). But from a resource file everything is fine. And as I said, if you do not create a child window then everything works fine. What's the problem?If I create a child window (In this case window