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Windows resolution

Posted on 1998-10-25
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Last Modified: 2010-04-06
Is there a function that returns the actual windows
resolution ( 640x480,800x600,1024x768, etc .. ) ?

bryan
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Question by:bryan7
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7 Comments
 

Accepted Solution

by:
ShadowHawk071998 earned 40 total points
ID: 1344310
I'm Not Too Sure if that's what you intended, but you can get the SCREEN size, by simlpy
using Screen :
  Screen.Width or
  Screen.Height
This will get you the Screen's Height and Width. But I don't know what will happen on Virtual or 'Panning' Desktops. I guess it shouldn't matter, because a person that uses a virtual desktop expects your software to think it has a bigger desktop, so it should work fine.
Look at
   http://www.pinpub.com/vcd/vcd9802i/vcd98b6.html
for some info on screen resolution (It's in C++, but it can easily be converted to Delphi, I think)
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Expert Comment

by:ShadowHawk071998
ID: 1344311
P.S.
  If you're thinking about writing forms in diffrent resolutions, check this:
http://www.inprise.com/devsupport/delphi/techdocs/tis/ti2861.html
it might be interesting (Didn't read it all myself :))


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LVL 3

Author Comment

by:bryan7
ID: 1344312
screen.height and screen.width is what I needed.
but..

Virtual Desktops ?

what's that ?

bryan
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Expert Comment

by:viktornet
ID: 1344313
Here is how you do that...

var
  XRes, YRes : Integer;
  ScreenDC : hDC;
begin
  ScreenDC := CreateDC('DISPLAY', nil, nil, nil);
  xRes := GetDeviceCaps(ScreenDC, HORZRES);
  yRes := GetDeviceCaps(ScreenDC, VERTRES);
  DeleteDC(ScreenDC);
  ShowMessage(Format('%d x %d',[xRes, yRes]));
end;

Cheers,
Viktor
0
 
LVL 3

Author Comment

by:bryan7
ID: 1344314
What's the difference ?
Can I get the coor depth too with hDC ?

bryan

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Expert Comment

by:ShadowHawk071998
ID: 1344315
What I ment about Virtual Desktops:
(It's just me thinking, I haven't checked it):
There are programs that allow you to have a bigger desktop, then your 'viewport'. The Viewport is the actual Resolution. Let's say you're using 800x600. That is your ViewPort. But you can have a desktop of 1024x768, but then you only view a part of it (In the size of 800x600). The program would allow you to pan around, so you can view the entire screen. It's very nice. Most video-cards today offer these capabilities.
THe info I'm missing, is whether screen.height in that case will return 1024 or 800.
YOu should also decide what do you WANT it to report in that case (Depending on your application needs).
Anyway. About getting the Screen's colour depth:
You CAN use devcaps to get it (Take a look at :
http://www.inprise.com/devsupport/delphi/qanda/750.html
).
Those questions are a good source of answers, BTW. And you might also check out:
http://infomaster.net/external/efg/Library/Delphi/Graphics/Win32API.htm
which is another good source for tips (Note that many of the links go to the inprise site).
Enjoy!
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Author Comment

by:bryan7
ID: 1344316
ok, thanx

bryan =)

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