saving bitmap file

[shotjase]

Hey guys i have a header file and now i am writing the implementation file and defining the constructors..i am having trouble with 1 but..

void bitmap:save (string filename)
{


}

//The bitmap representation is written to filename. The bitmap file will consist of two positive integers R and C representing the number of rows and columns followed by R rows of C columns of zeroes and ones. For example :

3 5
00000
00000
01100
//i have to save it into string file name
can anyone plz help me

[ropez]

Stop double posting

[shotjase]

well wen no1 answers my question i havta ask again
if you dont wanna help dont respond or look at it

[z05DSL3A]

@shotjase

That Kind of attitude is not going to get you many friends here...

It looks like you left it a grand total of one minute before posting again to another forum.

There are good reasons to only post in one forum, one of them is not to P!$$ off the people you are asking to help you.

I would also recommend that you read:
How To Ask Questions The Smart Way
http://www.cplusplus.com/forum/articles/1295/
and
How to put code into your postings:
http://www.cplusplus.com/forum/articles/1624/

[enixi0s]

I assume that would be :
void bitmap::save (string filename) {
}

If it is your own personal "bitmap" class you could probably do something like :

void bitmap::save (string filename) {
	ofstream file(filename, std::ios::out | std::ios::binary); // Note this might be filename.c_str(), I don't know

	if (file.is_open()) {
		file.write((char *)bmp_object, sizeof(YourBitmapStructure));
		file.write(bmp_object->data, (bmp_object->width * bmp_object->height) * (bmp_object->bits_per_pixel / 8));
	}
}

Works for me, and was found quite suprisingly on a tutorial on this very site... :/
As your method is local to the function you may want to replace bmp_object with this.
Good Luck.

[shotjase]

thanks man...nice 4 som1 2 help

[z05DSL3A]

Hmm...

@shotjase

I had posted a reply to your other copy of this question. (maybe that is another reason for not posting the same question in two forums at the same time)

I also noticed you posted the same question on DaniWeb, didn't get much of a response there either. When I recommended that you read 'How To Ask Questions The Smart Way' I was not having a dig at you, it will be worth your time to read it. It may help you understand why your questions have not been answered.