How to get main window handle from process handle?

[stbfish]

How to get main window handle from process handle?
I want to set widow positon before it show on screen.
thanks.

[2-Bit Chip]

A window that edits its own position or editing of another window's position?

[stbfish]

to 2-Bit Chip:
I have the process handle of an external process
created from within my application.How do I get the window handle from the process
handle?
thanks

[2-Bit Chip]

How did you run the process? ShellExecute or CreateProcess?

[sinsi]

Have a look at EnumThreadWindows

[stbfish]

How did you run the process? ShellExecute or CreateProcess?

CreateProcess, and i tried to change STARTUPINFO dwx, dwy, dwflags, not working.

other question here, after i invoke CreateProcess, the main window is already created or not?
i want to change window's position before it shows.

[MichaelW]

The STARTUPINFO dwFlags member needs to include STARTF_USEPOSITION, and the x and y parameters for CreateWindowEx need to specify CW_USEDEFAULT.