[HELP]How to make D3 Window smaller than 800*600?

[AGPS]

Anybody know how to make D3 window smaller than 800*600, such as 400*300?

[g4b51l]

Autoit:
WinMove ("[CLASS3 Main Window Class]", "", 0, 0, 400, 300)

[AGPS]

Autoit:
WinMove ("[CLASS3 Main Window Class]", "", 0, 0, 400, 300)

It doesn't work, the smallest size is 800*600.

[g4b51l]

That's what I also had in mind but I can resize totally free...I assume you are in full-screen-window mode?(last option)

[AGPS]

That's what I also had in mind but I can resize totally free...I assume you are in full-screen-window mode?(last option)

Thanks g4b51l,
I am using window mode---the second option, and I can manually resize D3 window with mouse operation, but not totally freeze, only 15 different size, and they are:
800*600,
1024*768,
1152*864,
1280*720,
1280*768,
...
...
1920*1080.

And when I invoke windows API(MoveWindow) to do this, the size is limited just as I do it with mouse.
WINUSERAPI
BOOL
WINAPI
MoveWindow(
__in HWND hWnd,
__in int X,
__in int Y,
__in int nWidth,
__in int nHeight,
__in BOOL bRepaint).

If D3 support all kinds of size or solution, is there a particular setting in D3 or PC which I haven't got it?