GTK+ Forums

#include <windows.h>
#include <gdk\gdkwin32.h>
#include <gtk\gtk.h>
#include <glib.h>

static HWND      hWndMain;
static HINSTANCE hInst;

char *pszVLC  = "vlc";
HWND  hWndVLC = ( HWND )0;

#define WM_RESIZE 1213

LRESULT CALLBACK VLCProc( HWND   hWnd,
                          UINT   iMsg,
                          WPARAM wParam,
                          LPARAM lParam ) {
   switch ( iMsg ) {
   case WM_CREATE:
   return( TRUE );
   case WM_PAINT: {
      HDC         hdc;
      PAINTSTRUCT ps;

      hdc = BeginPaint( hWnd, &ps );
      EndPaint( hWnd, &ps );
   }
   return( 0L );
   case WM_RESIZE:
      // here we get frame2 coordinates and size and we do the same with windows window.
      MoveWindow( hWnd, LOWORD( wParam ), HIWORD( wParam ), LOWORD( lParam ), HIWORD( lParam ), TRUE );
   break;
   case WM_CLOSE:
      DestroyWindow( hWnd );
   return( TRUE );
   case WM_DESTROY:
      hWndVLC = 0;
      UnregisterClass( pszVLC, hInst );
   return( TRUE );
   } /* endswitch */
   return DefWindowProc( hWnd, iMsg, wParam, lParam );
} // ***** Function VLCProc ***** //                         

ATOM pascal RegisterVLCClass( HINSTANCE hInstance ) {
   ATOM        atResult;
   WNDCLASSEX  wndclass ;

   wndclass.hInstance     = hInstance;
   wndclass.lpszClassName = ( LPSTR )pszVLC;
   wndclass.lpfnWndProc   = VLCProc;
   wndclass.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
   wndclass.cbSize        = sizeof( WNDCLASSEX );
   wndclass.hIcon         = NULL;
   wndclass.hIconSm       = NULL;
   wndclass.hCursor       = LoadCursor( NULL, IDC_ARROW );
   wndclass.lpszMenuName  = NULL;
   wndclass.cbClsExtra    = 0;
   wndclass.cbWndExtra    = 0;
   wndclass.hbrBackground = ( HBRUSH )( COLOR_BTNFACE + 1 );
   return( RegisterClassEx( &wndclass ) );
} // ***** Function RegisterVLCClass ***** //

static WPARAM BuildWParam( unsigned short low, unsigned short high ) {
    return ((( WPARAM )high << 16 ) | ( WPARAM )low );
}

gint destroyapp( GtkWidget *widget, gpointer gdata ) {
   g_print ("Quitting...\n");
   SendMessage( hWndVLC, WM_CLOSE, 0L, 0L );
   gtk_main_quit();
   return (FALSE);
}

void gtkVLCEvent( GtkWidget *widget, gpointer gdata ) {
   if ( hWndVLC )
      SendMessage( hWndVLC,
                   WM_RESIZE,
                   BuildWParam( widget->allocation.x    , widget->allocation.y ),
                   BuildWParam( widget->allocation.width, widget->allocation.height ));
}

int main( int   argc,
          char *argv[] ) {
   GtkWidget *window = NULL;
   GtkWidget *main_vbox;
   GtkWidget *vbox;
   GtkWidget *frame_horz;
   GtkWidget *button;

   gtk_init( &argc, &argv );
   window = gtk_window_new( GTK_WINDOW_TOPLEVEL );
   gtk_window_set_title( GTK_WINDOW( window ), "test window" );
   gtk_widget_set_size_request( GTK_WIDGET( window ), 200, 200 );
   g_signal_connect( G_OBJECT( window ), "destroy", G_CALLBACK( gtk_main_quit ), NULL );
   gtk_container_set_border_width( GTK_CONTAINER( window ), 10 );
   main_vbox = gtk_vbox_new( FALSE, 0 );
   gtk_container_add( GTK_CONTAINER ( window ), main_vbox );
   
   frame_horz = gtk_frame_new( "frame1" );
   gtk_box_pack_start( GTK_BOX( main_vbox ), frame_horz, TRUE, TRUE, 10 );

   frame_horz = gtk_frame_new( "frame2" );
   gtk_box_pack_start( GTK_BOX( main_vbox ), frame_horz, TRUE, TRUE, 10 );
   g_signal_connect( G_OBJECT( frame_horz ), "size-allocate", G_CALLBACK( gtkVLCEvent ), frame_horz );
 
   vbox = gtk_hbox_new( FALSE, 0 );
   gtk_box_pack_start( GTK_BOX( main_vbox ), vbox, TRUE, TRUE, 0 );


   button = gtk_button_new_with_label("click");
   gtk_box_pack_start( GTK_BOX( vbox ), button, TRUE, FALSE, 0);
   
   gtk_widget_show_all( window );
   // main handler and instance to window.
   hWndMain = ( HWND )gdk_win32_drawable_get_handle( GTK_WIDGET( window )->window );
   hInst    = ( HINSTANCE )GetWindowLong( hWndMain, GWL_HINSTANCE );
   RegisterVLCClass( hInst );
   hWndVLC  = CreateWindowEx( 0,
                              pszVLC,
                              "",
                              WS_CHILD | WS_VISIBLE | WS_BORDER | WS_CLIPSIBLINGS,
                              frame_horz->allocation.x,
                              frame_horz->allocation.y,
                              frame_horz->allocation.width,
                              frame_horz->allocation.height,
                              hWndMain,
                              NULL,
                              hInst,
                              NULL );

   ShowWindow( hWndVLC, SW_SHOW );
   UpdateWindow( hWndVLC );
   gtk_main();
   return 0;
}