PureBasic Forums - English

Posted: **Sat Oct 22, 2022 9:12 pm**

Hi,

On Windows 10:

MoveWindow_(GetForegroundWindow_(), 0, 0, 1920, 1560, 1)

My main screen has a 3840 x 1600 resolution.

I want to place a window on the exact half left side.
1560 because the taskbar is currently 40 px high.

I'm using this on e.g. Notepad.exe

but after the move is done, the x position isn't 0, it's actually 8
y is 0, so that's fine.
The rightmost position is 1912, so it's also 8 px less that it should be
and finally the height is also 8 px less than expected.

Is this typical behavior and is there a formula to know how to correct this "skew"?

Btw, WIN + Left, Right, etc. hotkeys do it correctly, the positions and sizes of windows moved by these are correct so there must be some way to get the skew values?

Posted: **Sat Oct 22, 2022 10:39 pm**

Hi
It looks like you did not consider your window borders
For example try :

Code: Select all

OpenWindow(0,0,0,800,600,"Test",#PB_Window_SystemMenu|#PB_Window_SizeGadget)
AdjustWindowRectEx_(r.RECT,#PB_Window_SystemMenu|#PB_Window_SizeGadget,0,0)
border = r\right
Debug border

Posted: **Sat Oct 22, 2022 10:40 pm**

From the nets (maybe also relevant):

In Windows Vista and later, the Window Rect now includes the area occupied by the drop shadow.
So, function MoveWindow and SetWindowPos think that the position/size you pass includes the shadow.
If you want to move and resize the area that excludes the shadow, then you need to first calculate the size of the shadow.

Posted: **Sat Oct 22, 2022 11:53 pm**

Thanks!

I'll need to get the dwStyle for that external window first [GetWindowLong_(hWnd, #GWL_STYLE)] and with this value I can use AdjustWindowRectEx_() and then adapt the offsets for the real size of the window

Works nicely with two Notepad.exe windows (one moved to the left half of the screen and the other one moved to the right side)...

PureBasic Forums - English

MoveWindow_() placement is slightly off?

MoveWindow_() placement is slightly off?

Re: MoveWindow_() placement is slightly off?

Re: MoveWindow_() placement is slightly off?

Re: MoveWindow_() placement is slightly off?