As new as I am to C++, I don´t fully understand this linking and stuff.
And I think this is about extern "C"
linking.
extern "C"
{
int loadbmp(char *filename, unsigned char **buf,
int *w, int *h, int pf, int bottomup);
const char *bmpgeterr(void);
}
unsigned char *srcBuf=NULL, **jpegBuf=NULL;
unsigned long jpegsize=0;
int width, height;
char *filename={"Screenshot158139.bmp"};
tjhandle handle=NULL;
void main(){
if(loadbmp(filename, &srcBuf, &width, &height,TJPF_RGB, 0)==-1){
//printf("Could not load bitmap: %s\n", bmpgeterr());
exit(1);
}
if((handle=tjInitCompress())==NULL) {
printf("Could not initialize compressor: %s\n", tjGetErrorStr());
free(srcBuf);
exit(1);
}
if((tjCompress2(handle, srcBuf, width, 0, height, TJPF_RGB,
jpegBuf, &jpegsize, TJSAMP_444,10, 0))==-1) {
printf("Could not compress: %s\n", tjGetErrorStr());
free(&srcBuf);
tjDestroy(handle);
exit(1);
}
}
The problem I get from this is that I need to resolve the extern "C"
code I think:
error LNK2001: unresolved external symbol loadbmp
Sadly, I don´t know how to do that, and as this error is extremely common in the C++ world, finding an answer for this is not that easy as they can differ.
Hopefully it´s pretty easy to solve this, as I guess I must define it or something as it´s external code.