Duplicate Windows

[visualise01]

How do I stop duplicate windows opening in my MDI app. Basically I dont want the same MDI Child form to open twice.

Using C++ .net 2003

[weaknessforcats]

Before you call CreateWindow, check a globally accessible value that was set the first time you called CreateWindow.

[visualise01]

Not sure what you mwan, I have created this porject in Windows Forms App.

I am trying this as a complete beginner.

[visualise01]

Before you call CreateWindow, check a globally accessible value that was set the first time you called CreateWindow.

Not sure what you mean, I have created this project in Windows Forms App.

I am trying this as a complete beginner.