Thread: Appending to an edit control

Whats the easiest and quickest way to append text to what is already in a Rich Edit control? When I open files, I open and read the file in another thread in 'chunks' of say, 1000 characters. Once each chunk has been read and stored in a temporary buffer, it needs to be appended to what has already been loaded in the edit control. Currently I am using a string to store all the text which has been loaded, and then using SetWindowText after reading each chunk to update the Edit control. But unfortunately this means the window flickers a lot and you can't scroll down and look through what has already been loaded.

Since I'm using a Rich Edit control, I'm thinking of using the EM_SETTEXTEX message, or setting the selection to the end of the text and replacing the text there to effectively append it to the end... Are there any easier ways/better alternatives?

Originally Posted by TheDan

Since I'm using a Rich Edit control, I'm thinking of using the EM_SETTEXTEX message, or setting the selection to the end of the text and replacing the text there to effectively append it to the end... Are there any easier ways/better alternatives?

That's one way to do it. Set the start and end of the selection to -1.

Another way is using Edit control Streams

Ah thanks. I was hoping there'd be some easy way such as AppendWindowText or something ;D Replacing the selection at the end works great, but I might switch to streams to stop it scrolling like mad everytime it updates the text =(


Thanks