c++ - How to display one image and one video in one window using OpenCV -

i came upon piece of code on this page. it's neat function takes input, char* , multiple iplimage* arguments , displays images in 1 window.

i want same 1 image , 1 video. so, apart changing main function initialise web cam input, , modifying call above function, else need change?

my main function :

int main() {      iplimage *img1 = cvloadimage("image1.png");     cvcapture* capture = cvcapturefromcam(0);    if ( !capture ) {      fprintf( stderr, "error: capture null \n" );      getchar();      return -1;    }    // create window in captured images presented    cvnamedwindow( "mywindow", cv_window_autosize );    // show image captured camera in window , repeat    while ( 1 ) {      // 1 frame      iplimage* frame = cvqueryframe( capture );      if ( !frame ) {        fprintf( stderr, "error: frame null...\n" );        getchar();        break;      }      //cvshowimage( "mywindow", frame );      cvshowmanyimages("image", 2, img1, frame);      // not release frame!      //if esc key pressed, key=0x10001b under opencv 0.9.7(linux version),      //remove higher bits using , operator      if ( (cvwaitkey(10) & 255) == 27 ) break;    }    // release capture device housekeeping    cvreleasecapture( &capture );    cvdestroywindow( "mywindow" );      return 0; } 

the problem is, shows first frame of video. , need keep pressing esc next frame.

this works need:

void cvshowmanyimages(char* title, int nargs, ...) {      // img - used getting arguments      iplimage *img;      // dispimage - image in input images copied     iplimage *dispimage;      int size;     int i;     int m, n;     int x, y;      // w - maximum number of images in row      // h - maximum number of images in column      int w, h;      // scale - how have resize image     float scale;     int max;      // if number of arguments lesser 0 or greater 12     // return without displaying      if(nargs <= 0) {         printf("number of arguments small....\n");         return;     }     else if(nargs > 12) {         printf("number of arguments large....\n");         return;     }     // determine size of image,      // , number of rows/cols      // number of arguments      else if (nargs == 1) {         w = h = 1;         size = 300;     }     else if (nargs == 2) {         w = 2; h = 1;         size = 300;     }     else if (nargs == 3 || nargs == 4) {         w = 2; h = 2;         size = 300;     }     else if (nargs == 5 || nargs == 6) {         w = 3; h = 2;         size = 200;     }     else if (nargs == 7 || nargs == 8) {         w = 4; h = 2;         size = 200;     }     else {         w = 4; h = 3;         size = 150;     }      // create new 3 channel image     dispimage = cvcreateimage( cvsize(100 + size*w, 60 + size*h), 8, 3 );     cvzero(dispimage);     // used arguments passed     va_list args;     va_start(args, nargs);      // loop nargs number of arguments     (i = 0, m = 20, n = 20; < nargs; i++, m += (20 + size)) {          // pointer iplimage         img = va_arg(args, iplimage*);          // check whether null or not         // if null, release image, , return         if(img == 0) {             printf("invalid arguments");             cvreleaseimage(&dispimage);             return;         }          // find width , height of image         x = img->width;         y = img->height;          // find whether height or width greater in order resize image         max = (x > y)? x: y;          // find scaling factor resize image         scale = (float) ( (float) max / size );          // used align images         if( % w == 0 && m!= 20) {             m = 20;             n+= 20 + size;         }          // set image roi display current image         cvsetimageroi(dispimage, cvrect(m, n, (int)( x/scale ), (int)( y/scale )));          // resize input image , copy single big image         cvresize(img, dispimage);          // reset roi in order display next image         cvresetimageroi(dispimage);     }      // create new window, , show single big image     //    cvnamedwindow( title, 1 );     cvshowimage( title, dispimage);      //    cvwaitkey(20);       // end number of arguments     va_end(args);      // release image memory     cvreleaseimage(&dispimage); } int main() {      iplimage *img1 = cvloadimage("d:\\imagesfortest\\cat.bmp");      cvcapture* capture = cvcapturefromcam(0);     if ( !capture ) {         fprintf( stderr, "error: capture null \n" );         getchar();         return -1;     }     // create window in captured images presented     cvnamedwindow( "mywindow", cv_window_autosize );     // show image captured camera in window , repeat     while ( 1 ) {         // 1 frame         iplimage* frame = cvqueryframe( capture );         if ( !frame ) {             fprintf( stderr, "error: frame null...\n" );             getchar();             break;         }         //cvshowimage( "mywindow", frame );         cvshowmanyimages("image", 2, img1, frame);         // not release frame!         //if esc key pressed, key=0x10001b under opencv 0.9.7(linux version),         //remove higher bits using , operator         if ( (cvwaitkey(10) & 255) == 27 ) break;     }     // release capture device housekeeping     cvreleasecapture( &capture );     cvdestroyallwindows();      return 0; }