参考代码如下:
//function definition
void ImageRead(AnsiString name,int &width,int &height,int *r,int *g,int *b)
{
//read image
FILE *fp
if((fp=fopen(name.c_str(),"rb"))==NULL) {
printf("cannot open bmp.name\n")
return
}
fread(&bfType,sizeof(WORD),1,fp)
if(bfType!=0x4d42) {//该值必需是0x4D42,也就是字符'BM'
printf("the input map is not bmp type")
return
}
fread(&bfSize,sizeof(DWORD),1,fp)
fread(&bfReserved1,sizeof(WORD),1,fp)
fread(&bfReserved2,sizeof(WORD),1,fp)
fread(&bfOffBits,sizeof(DWORD),1,fp)
fread(&bih,sizeof(BITMAPINFOHEADER),1,fp)
width=bih.biWidth
#include <graphics.h>#include <stdio.h>
int main()
{
int driver=0,mode=0
initgraph(&driver,&mode,"")
IMAGE img_1
loadimage(&img_1, _T("1.jpg"))
putimage(20, 20,&img_1)
getchar()
closegraph()
}