Two quick questions

[KempCGDR]

Hi, I'll get straight into the questions:

1) When I know a form isn't going to be used again in my app, I use [Form Name].Destroy, does this actually free up the memory or is there some extra stuff you have to do, or is that just totally wrong?

2) When you have put a picture into a TImage via [TImage Name].Picture.LoadFromFile(Filename), how do you remove the picture and make it blank again?

Thanks

 

[bbegley]

1) We use:
form1 := nil;
form1.release;
although we have an object managing the forms.

Delphi help says:
Do not call Destroy. Instead, call Release, which posts a CM_RELEASE message to the form. The handler for CM_RELEASE calls the Free method, which in turn calls Destroy.

2) Can you set the Image1.Picture.Graphic := nil? Or can you load an empty bitmap? I don't think it has any kind of clear property. Brian
"There are 2 kinds of people in the world, those that divide people into two groups and those that don't. I belong to the second group." - tag line I stole

 

[Stretchwickster]

2)

 Image1.Picture := nil;

will do it. Clive

 

[KempCGDR]

Thanks a lot guys