I wrote an MDI application in which every MDI Child Window is a dialog box created with the resource editor, with the extended flag MDI Child checked and with a Class that I register at the beginning of the execution.
In every dialog-window procedure I use the DefMDIChildProc function to manage the message I don't care. I create the dialog box with CreateDialog function.
My application works well in Windows 95, but when I tried to run it on NT 4.0 (Workstation) I saw a very strange behaviour: the dialog boxs don't paint correctly and I don't see the list of the windows in the Window Menu.
If I open a MDI test-window with CreateMDIWindow I saw it normally...
I use Borland C++ 5.01A