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Loading Textures in Borland C++ Builder 6

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Could someone help me come up with a more general way of loading textures in Borland? Below is what I have and it works for any square image that is a power of 2 I''m pretty sure: 32x32, 64x64, etc...But any weird sized image it doesn''t work. I''m using the ScanLine function for TBitmap and I think this is my problem. Please someone help me out because I can''t find anything much on Borland. Thanks, Abe
// converts from BGR to RGB

void convertRGB(Graphics::TBitmap* img)
   img->PixelFormat = pf24bit;
   char* ptr;
   char tempRGB;
   for(int y = 0; y < img->Height; ++y) {
      ptr = (char *)img->ScanLine[y];
      for(int x = 0; x < img->Width*3-2; x+=3) {
         tempRGB = ptr[x];
         ptr[x] = ptr[x+2];
         ptr[x+2] = tempRGB;

bool Tform_Main::LoadTextures()
   int texture_count = 1;
      delete textureNames;
   textureNames = new GLuint[texture_count];

   Graphics::TBitmap *img;

   img = new Graphics::TBitmap;
      return false;
   glGenTextures(1, &textureNames[0]);
   glBindTexture(GL_TEXTURE_2D, textureNames[0]);
   gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGB, img->Width, img->Height, GL_RGB,
      GL_UNSIGNED_BYTE, img->ScanLine[img->Width-1]);

   delete img;
   return true;

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