CODEWITHSUNDEEP
c#system.drawing
Lyndon
Lyndon

Reputation: 909

C# Displaying a image in a form that is non-blocking to the rest of my code

I know this is a rather broad question, but have a class that has a method to display an image and would like to use that method in a different piece of code to open up the image, but not have that method call be blocking.

So if I had the following snippet somewhere in a piece of code:

ImageClass MyImage = new ImageClass();
MyImage.DisplayImage(@"C:\SomeImage.jpg");
Console.Writeline("This is the line after displaying the image");

I would basically want the image to display and then proceed on to the Console Writeline. Do I have to create a new thread or process to do this? Thanks in advance.

Upvotes: 1

Views: 961

Answers (3)

Shea
Shea

Reputation: 11243

PictureBox.LoadAsync() will load w/o blocking.

Upvotes: 0

AgileJon
AgileJon

Reputation: 53616

Yes, you will need to use additional threads. I'm not as familiar with GDI, but you may need to run the non-UI code in a separate thread so that the UI code can run in the main UI thread. Something like the following:

ImageClass MyImage = new ImageClass();
MyImage.DisplayImage(@"C:\SomeImage.jpg");
ThreadPool.QueueUserWorkItem(new WaitCallback(new delegate(object o) {
    Console.Writeline("This is the line after displaying the image");
}));

Upvotes: 3

Jase Whatson
Jase Whatson

Reputation: 4207

Yes, creating a new thread and calling MyImage.DisplayImage(@"C:\SomeImage.jpg"); in that thread is the best way to do it.

Upvotes: 0

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