[Implemented] Error result for CreateImage()

[Mistrel]

From what I can tell from the documentation, CreateImage has no error result if the image creation fails (e.g. not enough memory). For reliable error catching I would like to see this added.

For example, the function can return -1 on an error.

[Arctic Fox]

Isn't it just returning 0 when encountering an error or have I misunderstood something?

[Mistrel]

Returning 0 would work too. My point is there's nothing in the documentation that identifies what it returns if it returns anything on an error. Or if it just crashes the program.

[PB]

I think the docs just need that added. It returns 0 if no image can be created:

Code: Select all

Debug CreateImage(0,9999,9999) ; Returns 0

However, I also notice that the debugger returns a runtime error if width or
height is >32000 pixels, which is in contradiction to the docs which state the
max is 8192 for width and height:

Code: Select all

Debug CreateImage(0,99999,99999) ; Compiler message about >32000 pixels

[Mistrel]

PB, you correctly state that it's an error thrown by the debugger but mention that it's a compiler error in your comment.

[PB]

No, one returns 0 and one is an error. So only one is an error.

[Mistrel]

What I mean is that you're using both "debugger error" and "compiler error" in your description. These are contradictory because if it's a compiler error then the debugger is never run.

[PB]

I don't know. I'm tired. Wait for someone else to contribute.

[freak]

All object creation functions in PB return 0 on failure.