vb.net - IsWindow returns false for existing window handle -


in vb6 application checking if vb.net winforms window exists:

public declare function iswindow lib "user32" (byval hwnd long) long  if not iswindow(102937)       messagebox("window not found!") end if

the messagebox shown, window exist.

i inspect 

debug.print(me.handle.toint32)'it prints 102937

what goes wrong here? perhaps handling return value of "iswindow" incorrectly?

thank you.

i found solution:

i indeed using winapi function incorrectly.

i should have used

if iswindow(102937) <> 1

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