   [Resolved] IMG_Load won't load a PNG
  Hi,I worked through a number of lazy_foo's SDL tutorials and have wrote some code based on them.  However, I'm having difficulty with the IMG_Load function that's part of SDL_image.It displays .bmp files without any issues, but when I try to load a .png file, nothing happens.  In the following two lines:loadedImage = IMG_Load( tempFileName.c_str() );if ( loadedImage != NULL )loadedImage is NULL after the assignment whenever I use a png file.  I thought the whole point of IMG_Load was that it could handle multiple image file types.  Am I missing something?  Is there more code I could paste to shed more light on the issue?Thanks![Edited by - matrisking on April 27, 2010 9:02:30 AM]
  Did you try following the code through to where it checks if different image types are enabled? I had this problem before... and the documentation doesn't talk much about it, so I'm guessing you are having the same problem I ran into a long time ago.Open up SDL_image.h. At the top is the following code:#ifndef _SDL_IMAGE_H#define _SDL_IMAGE_H#define LOAD_BMPAdd in #define LOAD_PNG to make it like this#ifndef _SDL_IMAGE_H#define _SDL_IMAGE_H#define LOAD_BMP#define LOAD_PNGEach file type that SDL_Image loads has a different value that needs to be defined. Look through the code to find them.   ;  I thought that was only the case if you built the library yourself. If not, make sure you have the relevant 2 extra DLLs - libpng and zlib, I believe.   ;  That did the trick, I forgot all about those.Thanks!   