Calling QuickC from QuickBasic

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2 total messages Started by Gabriel Landini Thu, 12 Nov 1992 11:21

#239

Author: Gabriel Landini
Date: Thu, 12 Nov 1992 11:21

11 lines
842 bytes

I am trying to pass the control from QUickBasic to QuickC for handling
pixels and calculations (some image processing).
However, Do I have to set up the C subroutine to a screen mode or it is kept
from the QBasic mode?
Help
Gabriel Landini
Oral Pathology Unit, School of Dentistry, Birmingham University.
St. Chad's Queensway, Birmingham B4 6NN. U.K.
Tel: +44 (0)21 2368611 ext. 5874
Fax: +44 (0)21 6258815
e-mail: G.Landini@bham.ac.uk

Re: Calling QuickC from QuickBasic

#338

Author: Tom Boutell
Date: Thu, 19 Nov 1992 18:55

28 lines
1201 bytes

My mailer didn't know you. Here we go again:


Interesting situation. Your problem is making sure that C and Quickbasic
both "know" what mode you're in so they'll execute the right code for
the mode. A cheap nasty solution:

At the beginning, when you set the graphics mode, do it in both:

SCREEN N   (in Quickbasic; clears the screen and sets graphics mode
						so your code will know about it)
call croutine()


void croutine() {
	_setupvideo(...same mode for Quick C...);
}

So the screen gets cleared twice, which is a waste but not noticeable if it
only happens when the program first starts up, and now both libraries
think they're in the same mode.

-T

-- 
Tom Boutell, boutell@cshl.org

Clausthaler is the best non - alcoholic beer in the known universe.

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