OpenEuphoria

Re: displaying bitmaps and deleting old bitmaps

• Posted by "Euman" <euman at bellsouth.net> Jan 05, 2004
• 356 views

Whatever the equivalent is for this (below) in Win32lib

hdc   = c_func(xGetDC, {hwnd})
memdc = c_func(xCreateCompatibleDC, {hdc})
hbit  = c_func(xCreateCompatibleBitmap, {hdc, xScreen, yScreen})
junk  = c_func(xSelectObject,{memdc, hbit})
        
if not c_func(xPatBlt, {memdc, 0, 0, vxScreen, vyScreen, PATCOPY}) then end if 

Euman


----- Original Message ----- 
From: "sixs" <sixs at ida.net>
To: <EUforum at topica.com>
Sent: Monday, January 05, 2004 11:24 AM
Subject: displaying bitmaps and deleting old bitmaps


> 
> 
> Hello.
> I am getting different pictures from the internet. They are of various
> sizes. I display one, then anoher and I may want to redisplay one I had
> previously displayed. Code is :
> hBitmap = loadBitmapFromFile(hSle9),
> then in onPaint  I am performing this code
>  
>              if db_table_size() > 0  then
>                         if atom(hBitmap) then
>                         deleteObject ( Bitmap54)
>                                     extent = getExtent(MyWin)
>                                     i = 241
>                                     j = 42
>                                     drawBitmap( MyWin, hBitmap, i, j)
>                         end if
>             end if
> The pictures are not of the same size and so some of the previous
> picture is left on the screen. How do I remove the previous picture
> without forcing each picture to be the same size,  or must I edit each
> picture in a photo program????
> Thanks  for any help
>  
> 
> 
> 
> TOPICA - Start your own email discussion group. FREE!
> 
>