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Native Development

Trusted Contributor
Posts: 160
Registered: ‎09-13-2012
My Device: 9900
My Carrier: vodafone

Re: Problem/Questions - QT

I really think my code is correct now after studying docs, samples and camera sample. I just cannot understand why the native screen is not visible. I have even just blitted another color at the end of initConnectionScreen() and still there is just a red square (my QMainWindow - 200 x 200) and the rest is dark background. I don't even see the blitted color.


Can anyone please suggest something to try because even RIM development advisor said this is possible so I cant understand why i dont see the screen.h over my QMainWindow.


void initConnectionScreen()
	int rc = screen_create_context(&screen_cxt, 0);
	screen_create_window_type(&connection_screen_window, screen_cxt, SCREEN_CHILD_WINDOW);
	char* idArr = "HelloForeignWindowAppID";
	char* groupArr = "cameraViewfinder";
	screen_join_window_group(connection_screen_window, groupArr);
	screen_set_window_property_cv(connection_screen_window, SCREEN_PROPERTY_ID_STRING, strlen(idArr), idArr);
	int video_size[] = { 1024,600 };
	screen_set_window_property_iv(connection_screen_window, SCREEN_PROPERTY_BUFFER_SIZE, video_size);
	screen_set_window_property_iv(connection_screen_window, SCREEN_PROPERTY_SOURCE_SIZE, video_size);
	cout << "init connection screen";
	int z = 10;
	screen_set_window_property_iv(connection_screen_window, SCREEN_PROPERTY_VISIBLE, &z);

	int pos[] = { 0, 0 };
	screen_set_window_property_iv(connection_screen_window, SCREEN_PROPERTY_POSITION, pos);

	screen_create_window_buffers(connection_screen_window, 1);

	screen_pixmap_t screen_pix;
	screen_create_pixmap(&screen_pix, screen_cxt);

	int format2 = SCREEN_FORMAT_YUV420;;
	screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_USAGE, &usage2);

	screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_FORMAT, &format2);

	screen_set_pixmap_property_iv(screen_pix, SCREEN_PROPERTY_BUFFER_SIZE, video_size);


	screen_get_pixmap_property_pv(screen_pix, SCREEN_PROPERTY_RENDER_BUFFERS, (void**) &connection_screen_pixel_buffer);

	screen_get_buffer_property_iv(connection_screen_pixel_buffer, SCREEN_PROPERTY_STRIDE, &stride);
	int attribs[] = { SCREEN_BLIT_COLOR, 0xffffff, SCREEN_BLIT_END };
	screen_buffer_t screen_buffer;
	screen_get_window_property_pv(connection_screen_window, SCREEN_PROPERTY_RENDER_BUFFERS, (void**) &screen_buffer);

	screen_blit(screen_cxt, screen_buffer, connection_screen_pixel_buffer, attribs);

	int dirty_rects[] = { 0, 0, 1024, 600 };
	screen_post_window(connection_screen_window, screen_buffer, 1, dirty_rects, 0);
	printf("fin init connection screen \n");
	fflush( stdout );
	 int visible = 1;
	screen_set_window_property_iv(connection_screen_window, SCREEN_PROPERTY_VISIBLE, &visible);

	    // There is a bug in ForeignWindow in 10.0.6 which defers window context
	    // flushing until some future UI update.  As a result, the window will
	    // not actually be visible until someone flushes the context.  This is
	    // fixed in the next release.  For now, we will just manually flush the
	    // window context.
	    screen_context_t ctx;
	    screen_get_window_property_pv(connection_screen_window, SCREEN_PROPERTY_CONTEXT, (void**) &ctx);
	    screen_flush_context(ctx, 0);