Re: Win32Lib: getDC of a pixmap problem

new topic     » goto parent     » topic index » view thread      » older message » newer message

On Thu, 7 Oct 1999, Cuny, David wrote:

> My guess is that you failed to specify the size (x,y) of the Pixmap when you
> created it. It's easy to accidentally use the (cx,cy) parameters instead:
>
>    create( class, title, parent, cx, cy, x, y, flags )
>
> If (x,y) are zero, then no bitmap is created, and a handle of zero is
> stored. Calling getDC() will then generate the error you got.
>
> If this is the problem, either specify a size for the pixmap, or resize it
> with setSize().
>
> Hope this helps!
>
> -- David Cuny

Nope, that's not it.  I define my pixmap as follows:

  Buffer = create( Pixmap, "", 0, 0, 0, 700, 800, 0 )

I even added a setSize in my onOpen routine (just to be sure):

  setSize( Buffer, 700, 800 )

I get the same error... any other suggestions?

new topic     » goto parent     » topic index » view thread      » older message » newer message

Search



Quick Links

User menu

Not signed in.

Misc Menu