SANE API usage example

sane_example.c

// SANE API usage example
// link against libsane
//  --> http://www.sane-project.org/html/doc012.html
#include <sane/sane.h>
#include <stdio.h>

int main() {
    //
    // Initialize SANE 
    //
    SANE_Int version;
    sane_init(&version, NULL);
    
    //
    // Request SANE backend to perform device lookup
    // and retrieve a list
    //
    SANE_Device** devices;
    sane_get_devices((const SANE_Device***)&devices, 0);

    do {
        printf("found: %s\n", (*devices)->vendor);
    } while(*(++devices));

    devices--;
    
    //
    // Open selected devices, get an handle to that
    //
    SANE_Handle hnd;
    sane_open((*devices)->name, &hnd);
    
    //
    // Start scanning
    //
    sane_start(hnd);
    
    
    //
    // Read scanning data
    //
    SANE_Int len;
    SANE_Byte data[1024];
    sane_read(hnd, data, 1024, &len);

    printf("%d\n", len);
    
    //
    // We're done, cleanup...
    //
    sane_exit();
    
    return 0;
}