If that's what you're doing, then don't you have all the information you need?
You've got the pointer to the bitmap!  That's got the width and height in it.

-- Keith






James Tu <[EMAIL PROTECTED]> on 11/05/2000 07:00:05 PM

Please respond to "Palm Developer Forum" <[EMAIL PROTECTED]>

Sent by:  James Tu <[EMAIL PROTECTED]>


To:   "Palm Developer Forum" <[EMAIL PROTECTED]>
cc:    (Keith Rollin/US/PALM)
Subject:  Re: Easier way of finding width and height of an attribute



Keith:

I'm basically a newbie trying to make a program that allows you to drag
a big (larger than 160x160) bitmap around.
Initially I used a form bitmap and tried to move it and it didn't work.
(I got a handle to the form obj and tried to set the obj to a new
location.)  So I decided to go the "draw the bitmap" way.  It's working
and now I'm fine tuning the interactiong.


I'm just using :

resH = DmGetResource (bitmapRsc, myBitmap);
bitmap = MemHandleLock (resH);
WinDrawBitmap(bitmap, current_x, current_y);
MemHandleUnlock (resH);

to draw the bitmap.  I want to use the width and the height of the
bitmap to calculate my current_x and _y.



[EMAIL PROTECTED] wrote:
>
> Can you tell us more about how you're handling this bitmap? I mean, if it's
part
> of the current form (that is, you have a bitmap object in the form), you can
> just call FrmGetObjectBounds to get the bounds.
>
> -- Keith
>
> I'm trying to develop my first few palm apps and I have a question for
> the almight list...
>
> Is there an easier way to find out information about resources?
> From what I've been reading, it seems that one would have to open up
> the application's resource database, the the resource ID of the
> bitmap, and then accessing it's attributes.
>
> I'm basically dragging a bitmap around the screen and want to contrain
> it to the boundaries of the screen.  I need to find out the width and
> height of my bitmap.
>
> Any sample code would be great!
>
> Thanks!

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