?
Solved

SetWindowPos

Posted on 2007-11-16
11
Medium Priority
?
3,219 Views
Last Modified: 2008-03-17
Hello,

When I do:
SetWindowPos(Wnd, 0, 100, 100, 500, 500, 0);

Then the window moves and resizes fine. The only problem is that the old position and size of the window are still visible. Kind of burnt into the desktop. If I move another app window over it, it will start to disappear.
Why won't it disappear after using SetWindowPos() ?

Greetings.
0
Comment
Question by:TonyJix
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 2
  • 2
  • +1
11 Comments
 
LVL 21

Expert Comment

by:developmentguru
ID: 20297957
I would try using the SetWindowPos type function built into your Delphi form and see if there is a difference.

SetBounds(Left, Top, Width, Height);

It sounds like there is an issue with your Windows setup though.

Let me know if that helps.
0
 
LVL 19

Expert Comment

by:MerijnB
ID: 20298102
do you see this leftovers if you move your window manually?
0
 

Author Comment

by:TonyJix
ID: 20298228
No, not when I do it manually..
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 16

Accepted Solution

by:
CodedK earned 2000 total points
ID: 20299211
You could send a desktop refresh :


procedure RefreshDesktop;
var c1 : cardinal;
begin
  c1:=FindWindowEx(FindWindowEx(windows.FindWindow('Progman','Program Manager'),0,'SHELLDLL_DefView',''),0,'SysListView32','');
  PostMessage(c1,WM_KEYDOWN,VK_F5,0);
  PostMessage(c1,WM_KEYUP,VK_F5,1 shl 31);
end;

Open in new window

0
 
LVL 16

Expert Comment

by:CodedK
ID: 20299275
Or after the SetWindowPos execute this :
SendMessage(HWND_BROADCAST,WM_WININICHANGE,0,0);
0
 
LVL 16

Expert Comment

by:CodedK
ID: 20299295
Or use InvalidateRect or ...
SystemParametersInfo(SPI_SETDESKWALLPAPER,0,0,SPIF_SENDCHANGE);

Thats all. I dont think that it will leave any traces now.
0
 
LVL 19

Expert Comment

by:MerijnB
ID: 20299308
that's just a workaround though. The question is why this is happening at all, it just shouldn't.
0
 
LVL 16

Expert Comment

by:CodedK
ID: 20299368
Yes it shouldnt.
Tony Jix can you see if this happens in a new application ?

It doesnt happen in my machine not in yours too i guess MerijnB. I cant replicate it, so the asker must provide further info. In the meantime this could be a graphic card issue or even the system needs a reboot. I dont thing that this is a workaround but a must have after resizing a window to cover all the situations if this program is going to run in other pcs.

0
 
LVL 16

Expert Comment

by:CodedK
ID: 20299381
I've seen this happen in Windows98.
0
 

Author Comment

by:TonyJix
ID: 20299405
It's an app in a VMWARE OS. I guess that's why... I was looking for a fix. With VMWARE that's just the way it is. Thank you.
0
 
LVL 16

Expert Comment

by:CodedK
ID: 20299414
Glad i've helped.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question