I want to draw a polygon on original images without re-draw these images.
It will redraw all images to use this->InvalidateRect(NULL,TRUE).It’s not necessary to draw original images, and only draw a polygon on these images.
How can I do?
Thanks!
I want to draw a polygon on original images without re-draw these images.
It will redraw all images to use this->InvalidateRect(NULL,TRUE).It’s not necessary to draw original images, and only draw a polygon on these images.
How can I do?
Thanks!