imggraph.h

struct BMP
    {
      char Type[2];           //File type. Set to "BM".
      unsigned long Size;     //Size in BYTES of the file.
      unsigned long Reserved;      //Reserved. Set to zero.
      unsigned long OffSet;   //Offset to the data.
      unsigned long headsize; //Size of rest of header. Set to 40.
      unsigned long Width;     //Width of bitmap in pixels.
      unsigned long Height;     //  Height of bitmap in pixels.
      unsigned int  Planes;    //Number of Planes. Set to 1.
      unsigned int  BitsPerPixel;       //Number of Bits per pixels.
      unsigned long Compression;   //Compression. Usually set to 0.
      unsigned long SizeImage;  //Size in bytes of the bitmap.
      unsigned long XPixelsPreMeter;     //Horizontal pixels per meter.
      unsigned long YPixelsPreMeter;     //Vertical pixels per meter.
      unsigned long ColorsUsed;   //Number of colors used.
      unsigned long ColorsImportant;  //Number of "important" colors.
    };
     
    int ShowBMP(int x, int y, char* FileName)
    {
        int b,a;
        struct  BMP Obj;
     
        unsigned char* Datas;
        int in=0;
        unsigned char c=0;
        FILE * fp;
     
	fp = fopen(FileName,"rb");
	if(!fp){
	printf("Error : Unable to open file ..");
	getch();
	exit(0);
	}

	fread(&Obj, sizeof(Obj), 1, fp);
	if(Obj.BitsPerPixel!=4)  // This isn't a 16 color bmp we can read;
	{
	 fclose(fp);
	 printf("Error : File format not supported ..");
	 getch();
	 exit(0);
	};
	fseek(fp,Obj.OffSet,SEEK_SET);
	Datas=(unsigned char*) calloc(Obj.Width/2+1, sizeof(unsigned char));
	for(b=Obj.Height;b>=0;b--)
	{
	 fread(Datas, sizeof(unsigned char), Obj.Width/2, fp);
	 c=0;
	 in=0;
	 for(a=0;a<=Obj.Width;a+=2)
	 {
	     c = (Datas[in] | 0x00) >>4;
	     putpixel(a+x,b+y,c);
	     c = (Datas[in] | 0xF0) & 0x0F;
	     putpixel(a+1+x,b+y,c);
	     in++;
	 }
	}
	free (Datas);
	fclose(fp);
	return 1;
    }