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Checking if an Image Exists [cpp && d3d]

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Started by v0dKA January 01, 2005 10:44 PM

2 comments, last by Alan Kemp 19 years, 3 months ago

v0dKA

568

Author

January 01, 2005 10:44 PM

I need to check if a bitmap image specified by a filename exists or not before I try to use it. What function/technique can I use to find out? I'm using C++ and Direct3D.

.:<<-v0d[KA]->>:.

Alan Kemp

772

January 01, 2005 10:46 PM

Assumming you dont want to use some 3rd party library like boost, how about:

#include <fstream>bool file_exists(const std::string & filename){    std::ifstream file(filename.c_str());    return file.is_open();}

Alan

"There will come a time when you believe everything is finished. That will be the beginning." -Louis L'Amour

v0dKA

568

Author

January 01, 2005 10:51 PM

Oh, didn't quite think of that. ifstream doesn't care if it's an image, does it?

.:<<-v0d[KA]->>:.

Alan Kemp

772

January 01, 2005 10:56 PM

Its a generic Input File STREAM. It has absolutly no knowledge of whats in the file. Be aware that this will only tell you if the file exists or not, not if its a valid bitmap.

Alan

"There will come a time when you believe everything is finished. That will be the beginning." -Louis L'Amour

Checking if an Image Exists [cpp && d3d]

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Checking if an Image Exists [cpp && d3d]

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