Error creating GUI edit control with large string

[Relayer]

Hi,

This is just an observation and not a request for help...

I use a function that creates a GUI with an edit control for viewing the contents of variables for simple debugging. My function creates the edit control and then populates it by making the last parameter "% text" where 'text' contains the string to display. If 'text' contains a large string, say somewhere above 700K characters, an error is flagged and the script fails. The fix was to create a blank control and then fill it using GuiControl command. I don't know if this is intended to have this limitation or not. I'm using v.1.1.24.02 64 bit.

Relayer

[just me]

I'm pretty sure it's not 'intended'. It's caused by the way AHK creates the Edit control. If you pass text whith Gui, Add, Edit, ... the text is passed to the control when it is created. Afterwards AHK sends a EM_TEXTLIMIT/EM_SETLIMITTEXT message.

Code: Select all

			// Now set the limit. Specifying a limit of zero opens the control to its maximum text capacity,
			// which removes the 32K size restriction.

This seems to be a bit too late in case you pass a text larger than the limit.

Before EM_LIMITTEXT is called, the default limit for the amount of text a user can enter in an edit control is 32,767 characters.

EM_LIMITTEXT

[Relayer]

Thanks for the explanation!

Relayer