1. GDI full ??
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GlacierHi,
I'm still having trouble with GDI memory,=20
since i use a graphics program to display a lot of BMP (1024*768,full =
color), i keep having problems with GDI.
After a couple of 100 times displaying a different picture Win32lib =
gives an error saying it can not find the BMP anymore or it can not =
display it.
The BMP is still there in the same folder so it has to be Windows who is =
out off GDI memory.
My Question: when i load a bitmap into memory how can i reuse the same =
memory for the next picture ?
so i do not use other gdi memory for the next picture i switch to.
I only need to show 1 big BMP at a time .
I already relaese memory now, after switching, but that seems to leave =
a memory leak.=20
(the program hangs after a week or so ; switched displaying 200 bmps a =
day. after a reboot it works fine again)
Kind Regards,
Renzo Beggia from Belgium
Email : renzo.beggia at vsk.be
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<DIV>Hi,</DIV>
<DIV> </DIV>
<DIV>I'm still having trouble with GDI memory, </DIV>
<DIV> </DIV>
<DIV>since i use a graphics program to display a lot of BMP=20
(1024*768,full color), i keep having problems with GDI.</DIV>
<DIV> </DIV>
<DIV>After a couple of 100 times displaying a different picture Win32lib =
gives=20
an error saying it can not find the BMP anymore or it can not display =
it.</DIV>
<DIV> </DIV>
<DIV>The BMP is still there in the same folder so it has to be Windows =
who is=20
out off GDI memory.</DIV>
<DIV> </DIV>
<DIV>My Question: when i load a bitmap into memory how can i reuse the =
same=20
memory for the next picture ?</DIV>
<DIV>so i do not use other gdi memory for the next picture i switch =
to.</DIV>
<DIV> </DIV>
<DIV>I only need to show 1 big BMP at a time .</DIV>
<DIV>I already relaese memory now, after switching, but that seems to =
leave a=20
memory leak. </DIV>
<DIV>(the program hangs after a week or so ; switched displaying 200 =
bmps a day.=20
after a reboot it works fine again)</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Kind Regards,</DIV>
<DIV> </DIV>
<DIV>Renzo Beggia from Belgium<BR>Email : <A=20
href=3D"mailto:renzo.beggia at vsk.be">renzo.beggia at vsk.be</A></DIV>
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2. Re: GDI full ??
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GlacierRenzo,
you need to use the deleteResource() function to free up the bitmap =
resources. Here is a short program to demonstrate what I mean:
include win32lib.ew
constant myWin =3D
create( Window, "Bitmap View", 0, 0, 0, 0.99, 0.99, 0 )
constant myBitmap =3D create( Bitmap, "", myWin, 0, 0, 1000, 1000, 0 )
atom hBitmap
hBitmap =3D 0
-- action to take when the window opens
global procedure onOpen_myWin()
if hBitmap !=3D 0 then
-- Free up bitmap resources.
deleteObject(hBitmap)
end if
=20
hBitmap =3D loadBitmapFromFile("C:\\windows\\webshots.bmp")
setBitmap( myBitmap, hBitmap )
end procedure
=20
-- tell Windows when to do the action
onOpen[myWin] =3D routine_id( "onOpen_myWin" )
onClick[myWin] =3D onOpen[myWin]
-- hand control over to Windows
WinMain( myWin, Normal )
This loads a bitmap every time you click on the window. You can use a =
system monitor to see that allocated memory is returned each time.
--------
Cheers,
Derek.
----- Original Message -----=20
From: renzo=20
To: EUforum=20
Sent: Monday, July 09, 2001 8:56 PM
Subject: GDI full ??
Hi,
I'm still having trouble with GDI memory,=20
since i use a graphics program to display a lot of BMP (1024*768,full =
color), i keep having problems with GDI.
After a couple of 100 times displaying a different picture Win32lib =
gives an error saying it can not find the BMP anymore or it can not =
display it.
The BMP is still there in the same folder so it has to be Windows who =
is out off GDI memory.
My Question: when i load a bitmap into memory how can i reuse the same =
memory for the next picture ?
so i do not use other gdi memory for the next picture i switch to.
I only need to show 1 big BMP at a time .
I already relaese memory now, after switching, but that seems to leave =
a memory leak.=20
(the program hangs after a week or so ; switched displaying 200 bmps a =
day. after a reboot it works fine again)
Kind Regards,
Renzo Beggia from Belgium
Email : renzo.beggia at vsk.be
Or send an email To: EUforum-unsubscribe at topica.com
This email was sent to: ddparnell at bigpond.com
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Glacier</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dwindows-1252"><BASE=20
href=3D"file://C:\Program Files\Common Files\Microsoft =
Shared\Stationery\">
<STYLE>BODY {
MARGIN-TOP: 20px; FONT-SIZE: 10pt; MARGIN-LEFT: 50px; COLOR: #006666; =
FONT-FAMILY: Arial, Helvetica
}
</STYLE>
<META content=3D"MSHTML 5.50.4611.1300" name=3DGENERATOR></HEAD>
<BODY bgColor=3D#ffffff =
background=3Dcid:005901c10939$20ca4fc0$9bd6fea9@xyzzy>
<DIV><FONT color=3D#000000>Renzo,</FONT></DIV>
<DIV><FONT color=3D#000000>you need to use the deleteResource() function =
to free=20
up the bitmap resources. Here is a short program to demonstrate what I=20
mean:</FONT></DIV>
<DIV><FONT color=3D#000000></FONT> </DIV>
<DIV><FONT color=3D#000000></FONT> </DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV><FONT face=3D"Courier New" color=3D#000000 size=3D3>include=20
win32lib.ew<BR>constant myWin =3D<BR> create( =
Window, "Bitmap=20
View", 0, 0, 0, 0.99, 0.99, 0 )</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV>
<DIV><FONT face=3D"Courier New" color=3D#000000 size=3D3>constant =
myBitmap =3D create(=20
Bitmap, "", myWin, 0, 0, 1000, 1000, 0 )</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV>
<DIV><FONT face=3D"Courier New" color=3D#000000 size=3D3>atom =
hBitmap<BR>hBitmap =3D=20
0</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV>
<DIV><FONT face=3D"Courier New" color=3D#000000 size=3D3>-- action to =
take when the=20
window opens<BR>global procedure onOpen_myWin()</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV><FONT =
color=3D#000000>
<DIV><BR><FONT face=3D"Courier New" size=3D3> if =
hBitmap !=3D 0=20
then<BR> -- Free up bitmap=20
resources.<BR> =20
deleteObject(hBitmap)<BR> end=20
=
if<BR> =
<BR> hBitmap =3D=20
loadBitmapFromFile("C:\\windows\\webshots.bmp")</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV>
<DIV><FONT face=3D"Courier New" size=3D3> setBitmap( =
myBitmap,=20
hBitmap )<BR>end procedure<BR> <BR>-- tell Windows when to =
do the=20
action<BR>onOpen[myWin] =3D routine_id( "onOpen_myWin" =
)<BR>onClick[myWin] =3D=20
onOpen[myWin]</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D3></FONT> </DIV>
<DIV><FONT face=3D"Courier New" size=3D3>-- hand control over to=20
Windows<BR>WinMain( myWin, Normal =
)<BR></FONT></FONT></DIV></BLOCKQUOTE>
<DIV><FONT color=3D#000000>This loads a bitmap every time you click on =
the window.=20
You can use a system monitor to see that allocated memory is returned =
each=20
time.</FONT></DIV>
<DIV><FONT color=3D#000000></FONT> </DIV>
<DIV><FONT color=3D#000000>--------</FONT></DIV>
<DIV><FONT color=3D#000000>Cheers,</FONT></DIV>
<DIV><FONT color=3D#000000>Derek.</FONT></DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Drenzo.beggia at vsk.be =
href=3D"mailto:renzo.beggia at vsk.be">renzo</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3DEUforum at topica.com=20
href=3D"mailto:EUforum at topica.com">EUforum</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, July 09, 2001 =
8:56 PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> GDI full ??</DIV>
<A =
<DIV>since i use a graphics program to display a lot of BMP =
(1024*768,full color), i keep having problems with GDI.</DIV>
<DIV> </DIV>
<DIV>After a couple of 100 times displaying a different picture =
Win32lib gives=20
an error saying it can not find the BMP anymore or it can not display=20
it.</DIV>
<DIV> </DIV>
<DIV>The BMP is still there in the same folder so it has to be Windows =
who is=20
out off GDI memory.</DIV>
<DIV> </DIV>
<DIV>My Question: when i load a bitmap into memory how can i reuse the =
same=20
memory for the next picture ?</DIV>
<DIV>so i do not use other gdi memory for the next picture i switch =
to.</DIV>
<DIV> </DIV>
<DIV>I only need to show 1 big BMP at a time .</DIV>
<DIV>I already relaese memory now, after switching, but that seems to =
leave a=20
memory leak. </DIV>
<DIV>(the program hangs after a week or so ; switched displaying 200 =
bmps a=20
day. after a reboot it works fine again)</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Kind Regards,</DIV>
<DIV> </DIV>
<DIV>Renzo Beggia from Belgium<BR>Email : <A=20
href=3D"mailto:renzo.beggia at vsk.be">renzo.beggia at vsk.be</A></DIV>
=
<P> </P><PRE>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
<A =
href=3D"http://topica.com/u/?b1dd66.${encoded_sub_id}">http://topica.com/=
u/?b1dd66.b2mL5y</A>
Or send an email To: EUforum-unsubscribe at topica.com
This email was sent to: ddparnell at bigpond.com
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