Windows Transparent Key, Through the Window?

Question

Dear, Fellow-Coders
I recently noticed if I try the transparent key and set it for example, pink and I have a pink background for my picture box.. And a image inside that box. Sure enough the pink is transparent, but instead of going to the image beneath it, or to the form...
It goes through the application. I'm using Visual Studio Express 2013. Please Help, Thanks! (Also, if you need code to do this.. Can you provide it, I searched this everywhere and found nothing.)

Answer 1

Dear, Fellow-Coders
I recently noticed if I try the transparent key and set it for example, pink and I have a pink background for my picture box.. And a image inside that box. Sure enough the pink is transparent, but instead of going to the image beneath it, or to the form...
It goes through the application. I'm using Visual Studio Express 2013. Please Help, Thanks! (Also, if you need code to do this.. Can you provide it, I searched this everywhere and found nothing.)
Hello,
That is the right behavior of that property, and it is mainly used for transparent for forms.
You could refer to the following documents for more information.
1.
Form.TransparencyKey Property
2.Transparency Tutorial with C# - Part 3
And for transparent for picturebox, you could get that consider using the way shared in this thread below.
https://social.msdn.microsoft.com/forums/windows/en-us/f43ed61e-6e15-41f8-801d-1e908810eed2/transparent-picturebox
If you are dealing with transparent images, you could consider following this document.
How to Use Transparent Images and Labels in Windows Forms
Regards,
Carl
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Hello,
Based on testing by adding the other controls, I have edited that reply.
Regards,
Carl
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