I'm using a PictureBox. 4 k full screen to display a picture on the screen, but the load slowly, if I show only a quarter of the screen, such will speed up some more

CodePudding user response:

You don't know the under test

CodePudding user response:

This depends on the size of the image, such as a picture of a 20 m 6000 * 4000 resolution, which USES image viewer, open may need 1, 2 seconds, the main consumption of time on the I/O, so if you're looking for a quick preview, is the need to generate smaller slightly thumbnail, 4 k 4 k is not in itself, you are not a 3 d picture, need dynamic computation pixels, just stretching for static image display,

CodePudding user response:

Add a thread to handle