[C++] Create a screenshot

hybrid · Post by **hybrid** » Tue Jul 25, 2006 12:47 pm

Hey, great job. Could you host or send the files such that I need not copy them from the web page?

Halan · Post by **Halan** » Tue Jul 25, 2006 6:17 pm

nice

but what is SBMPHeader?

edit: ah sry now i know. its just my compiler sasys that SBMPHeader is not declared.

miko93 · Post by **miko93** » Tue Jul 25, 2006 6:32 pm

Any chance we are going to see this code in the cvs Irrlicht version?
*cough *hinthint

hybrid · Post by **hybrid** » Tue Jul 25, 2006 8:02 pm

No, CVS is dead. But SVN might have a chance.

Halan · Post by **Halan** » Fri Jul 28, 2006 10:10 am

yeah hybrid implent it espacially the image-writers

well ive got a problem. if i do it this way

Code: Select all

CImageWriterBMP Writer;
Writer->writeImage(file, image);

it stops compiling and says

base operand of `->' has non-pointer type `CImageWriterBMP'

if i do it this way

Code: Select all

CImageWriterBMP* Writer;
Writer->writeImage(file, image);

it crashes at runtime (as expected)

any ideas?

hybrid · Post by **hybrid** » Fri Jul 28, 2006 11:10 am

Simply learn the subtle differences of objects and pointers in C++ and use a . instead of -> in the former case. -> is the dereference and access object attribute operator, while . is simply the access object attribute operator. Since you have no pointer here you should not dereference (better you cannot).

Halan · Post by **Halan** » Fri Jul 28, 2006 12:33 pm

ah ok thanks... well i still crashes at createScreenshot(). i dont know why

hybrid · Post by **hybrid** » Fri Jul 28, 2006 12:41 pm

Did you use the correct (updated) headers when you recompiled your app? Otherwise the class sizes are wrong and the code will access classes in a weird way. Probably alos compile everything from scratch as most windows tools do not recognize dependencies correctly.

wooohoh · Post by **wooohoh** » Sun Aug 27, 2006 7:32 am

i just wonder where does SBMPHeader & etc comes from..

I tired to use this code, but realized that i don't have them anywhere in the code

vitek · Post by **vitek** » Sun Aug 27, 2006 7:37 am

The struct SBMPHeader is in CImageLoaderBMP.h. It would be much easier for you if you just got Irrlicht 1.0 or later. The Image writer and screenshot code is all included in Irrlicht now.