Board index » cppbuilder » How to find out dimensions of current display (not screen)?

2005-05-06 04:37:50 PM
cppbuilder25
How to find out dimensions of current display?
With my ATI graphic card I am able to set the resolution larger than
the display's capabilities, so when the mouse reaches the border the
shown region scrolls, i.e. the monitor only shows a part of the
complete screen.
So Screen->Width/Height contains the complete with/height of the
screen.
How can I find out the Width/Height of the display?
Btw: How can I find out the dimensions of the second monitor (screen
and display) and how can I open a Window inside the second monitor?
Thanks a lot,
Michael
 

GetDeviceCaps()
 

My current virtual screen size is 2048x1536, while my current used
(and max.) laptop-display resolution is 1024x768.
I'm trying some parameters but did never get the desired 1024/768
values:
Trying
HDC hdc=GetDC(NULL);
// results right: a 1024 x 768 display inside a 2048 x 1536 screen
int horz_res=GetDeviceCaps(hdc,HORZRES); // 2048
int vert_res=GetDeviceCaps(hdc,VERTRES); // 1536
int desktop_horz_res=GetDeviceCaps(hdc,DESKTOPHORZRES); // 2048
int desktop_vert_res=GetDeviceCaps(hdc,DESKTOPVERTRES); // 1536
All these result in the virtual resolution of 2048/1536.
What parameter do I have to use to get 1024/768 as result?
Thanks,
Michael
 

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