VisualBasic makes a Form appear in another non-MDIForm Form

If you want to place Form2 in Form1, please declare in the declaration area:

DeclareFunctionSetParentLib"user32"(ByValhWndChildAsLong,ByValhWndNewParentAsLong)AsLong

Just add SetParent(Me.hWnd, Form1.hWnd) to Form_Load in Form2.

But one thing to note is that you must UnloadForm2 before UnloadForm1. ->