jrn@csd4.csd.uwm.edu (James Ray Norton) (10/12/89)
I have a question...
In Turbo Pascal v5.0 there is a command called GetImage..
After loading a graphics image onto the VGA screen, I am displaying some lines
Before putting the lines on the screen I save the image under the line..
ie. I do this GetImage(240,0,240,480,PicX)
This works... Because I can then Draw the line and do the following
PutImage(240,0,PicX,NormalPut);
And the line dissappears...
BUT..
It seems doing that for the horizontal line doesn't work..
I try this GetImage(0,240,480,240,PicY)
Then I draw the line...
Then I try this PutImage(0,240,PicY,NormalPut)...
This doesn't work...ie the line does not dissappear..
Can anybody help?
Is this problem due to some oddity with GetImage? and/or PutImage?
This is very important because I am writing a Fractal generator and I need
the lines for the user to specify a window....
THanks in advance..
Jim Norton
jrn@csd4.csd.uwm.edu
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