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Program to display a 16 color bitmap

Posted By: Easy Tutor     Category: C Programming     Views: 6817

This program shows how to display a 16 color bitmap. In this program palettes are not used for bmp,hence all default 16 colors are used. If you know BMP structure you can try to add palettes.

Code for Program to display a 16 color bitmap in C Programming

#include <alloc.h>
#include <conio.h>
#include <graphics.h>
#include <stdio.h>
#include <stdlib.h>
//+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+#define UL unsigned long#define UI unsigned int#define UC unsigned char//+-+-+-+-+-+-+-+-+-+-+-+-+-+< BMP Structures >+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
typedef struct
    char Type[2];
    UL Size;
    UI R1;
    UI R2;
    UL OffSet;
typedef struct
    UL headsize;
    UL Hlen;
    UL Vlen;
    UI planes;
    UI BPP;
    UL Method;
    UL BmpSize;
    UL HRes;
    UL VRes;
    UL Colors;
    UL IColors;
//+-+-+-+-+-+-+-+-+-+-+-+-+-< Display BMP >+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+int ShowBMP(int x, int y, char* FileName)
      int b,a;
      BMP1 Obj1;
      BMP2 Obj2;
      UC * Holder;
      UC c=0;
      FILE * fp;

      fp = fopen(FileName,"rb");
          return 0;
      fread(&Obj1, sizeof(Obj1), 1, fp);
      fread(&Obj2, sizeof(Obj2), 1, fp);
      if(Obj2.BPP!=4)  // This isn't a 16 color bmp we can read;
        return 0;
      Holder=(UC *) calloc(Obj2.Hlen/2+1, sizeof(UC));
        fread(Holder, sizeof(UC), Obj2.Hlen/2, fp);
            c = (Holder[in] | 0x00) >>4;
            c = (Holder[in] | 0xF0) & 0x0F;
      free (Holder);
      return 1;
//+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-< **** >+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+// Two bmp demo.bmp & demo1.bmp are provided.// open these bmp in windows paint & change.(do not change size of bmp)//+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-< Main >+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+void main()
 int color,D=DETECT,E;
// registerfarbgidriver(EGAVGA_driver_far);
 if(!ShowBMP(0,0,"neeraj.bmp")) E=1;
 if(E) printf("\nError : Unable to open file.");
 else printf("Sucess !");

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Easy Tutor
Easy Tutor author of Program to display a 16 color bitmap is from United States. Easy Tutor says

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Indranil Banerjee from India Comment on: Aug 09
Many many thanks to you..
God bless u.
email: indranil2121@gmail.com
I need more help from u.

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