Corey080698
asked on
Problem With SetActivePage & SetVisualPage
Ok, I'm having problems with setactivepage and setvisualpage commands in Turbo Pascal. Its just that everytime I flip a page (for example from page 0 to page 1) the page the visual page starts off the screen. For example...if I drew a box at 100, 100, 200, 200 on page 0, then setactivepage (1) and drew the same box and then setvisualpage(1), the box would move higher on the screen...there's a difference of about 32 pixels from what I can tell. Does anyone know how to fix this problem?
ASKER
Okay, well for the BGI thing I have the
following line in my program
uses Graph;
I then later intialize the graphics mode and all that.
My video card is an ATI All-In-Wonder 4M PCI...never had a problem with it before...but then I've never done page flipping with it either. Any more suggestions or comments?
following line in my program
uses Graph;
I then later intialize the graphics mode and all that.
My video card is an ATI All-In-Wonder 4M PCI...never had a problem with it before...but then I've never done page flipping with it either. Any more suggestions or comments?
I do alot of page flipping and had similiar problems because of how my procedures were written. There was an increment in one of my variables.
You may need to correct those pagefliiping procedures...
what's you email address so I can send it over.
You may need to correct those pagefliiping procedures...
what's you email address so I can send it over.
ASKER
my email address is corey@mnsi.net... I have actually figgured it out...Instead of just using the following commands:
driver:=detect;
mode := 2;
initgraph (driver, mode, '');
Instead of using the default driver, I installed my own driver and then tried and it worked great. Thanks for all your help everyone.
driver:=detect;
mode := 2;
initgraph (driver, mode, '');
Instead of using the default driver, I installed my own driver and then tried and it worked great. Thanks for all your help everyone.
Which driver do you use? For using another driver you should use procedure: installuserdriver(...);
ASKER
I'm using the BGI256.BGI driver...all I did was just change the code (see previous messages) to the following:
driver := InstallUserDriver ('BGI256', nil);
mode := 3;
initgraph (driver, mode, '');
everything seems to be working fine
driver := InstallUserDriver ('BGI256', nil);
mode := 3;
initgraph (driver, mode, '');
everything seems to be working fine
Try to use the driver "svga256.bgi". I think this driver will be better.
great for you....I'll still send it though
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(Seriously, I don't know. Maybe the problem lies within your video card)