Image drawing is distorted when app run on scaled display

Question

Hi I have a small C# utility app to take a 750x500 photo and cut it into puzzle pieces. Works perfectly on 100% display (96 DPI). If the same app is run on a device which has a 150% display (to make images/text more visible on a small screen) the puzzle pieces are no longer correctly cut: images are cut-off on the edges. I have turned off the high DPI aware in the XML. Does not help. Must be a problem with some other code that is scaling and drawing these images? Any suggestions welcome.

Stephen · Answer

Hi Hana I've been stuck for a long time tried everything. I have beginner skills got some help last year building the C# project but this help is no longer available. Thank you for the suggestion: I looked at the LeadTools options to control scale and size of images turning on or off. But my project is given away free to help people so no ability to buy a LeadTools SDK license or deployment license. I think that the resizing and scaling in my app works OK when the display is set at 100% but if the user has a visual problem needs to magnify the screen by setting it to 150% for example then the app creates cut-off puzzle pieces. Doesn't work correctly. If they return the screen to 100% magnification then the puzzle pieces are cut correctly. A puzzle... Not sure how to fix it?

Hana Lovro · Answer

This depends on how exactly you are creating puzzled images. I am currently using .NET programming library (leadtools) that has function to create puzzled image. Also they have options to control the scale and size of the images in general. More information can be found here .