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Have you tried WS_CLIPCHILDREN (Clip Children property in the designer)?
When I draw something that needs to be flicker free, I usually use a backbuffer bitmap, to which I connect a memory dc. I then paint to the memory dc, and blit it wherever I want it shown. I also make sure I don't let the background in the picture area to be redrawn, because that's the root of all evil flickering.
The general solution I apply is to create a new window class, and call it Canvas or something like that. In its WM_ERASEBKGND handler, I don't do anything. I just return TRUE to signal that the background has been erased. I then set the WS_CLIPCHILDREN style on its parent. The window class maintain the backbuffer bitmap and memory dc, which is used for drawing operations. Whenever the control needs to redraw itself in the WM_PAINT handler, I just blit the bitmap to the window dc. No flickering... (and also reusable!)
--
Pictures[^] from my Japan trip.
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Hi,
Does the CString has a max character limit ? Because i can not save to the member variables of CString type very big SQL queries (about 500 characters long).
Any suggestion ?
sdancer
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sdancer75 wrote: Does the CString has a max character limit ? Because i can not save to the member variables of CString type very big SQL queries (about 500 characters long).
Any suggestion ?
CString has limits but it certainly isn't limited to 500 characters. How are you saving your query into the CString?
Michael
CP Blog [^] Development Blog [^]
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sdancer75 wrote: Does the CString has a max character limit ?
Yes, something on the order of 231 bytes, give or take a few.
"Take only what you need and leave the land as you found it." - Native American Proverb
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CString doesn't have limits, your code does.
Before blaming someone elses code for an error, first try to find the bug in your code. CString does not have a limit of 500 characters. You are wasting your time looking for your problem in CString.
Tim Smith
I'm going to patent thought. I have yet to see any prior art.
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"A CString object can store up to INT_MAX (2,147,483,647) characters."
That is what it says in the MSDN libraray.
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Hey guys,
Thank you for your replies. It was my mistake. I confused since the debugger shows only a small part of the CString Variable and with my error in the code i had problems.
I solved. Thank you to All !
Regards,
sdancer
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Hi,
I want to show a client desktop on server (like remote desktop in windows)
what is the best way for doing this?
cheers,
thanks.
Every new thing you learn,Gives you a new personality.
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Create a screenshot of the desktop and send it to the server. That's how all remote desktop proggies work anyway.
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You can try looking at the source code for TightVNC for some clues on how to do this.
"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty
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Hi,
How can a button press be simulated, so when you do the call you can see the button going down and up again, and the corresponding button handler gets called.
I use the following code now.
((CButton *) GetDlgItem(IDC_MOD))->SendMessage(BM_CLICK);
The button handler gets called, but the button doesn't go down and up again.
Is there any other way to achief this ?
Thx
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Have you tried sending WM_LBUTTONDOWN+WM_LBUTTONUP (with proper point) ?
I haven't tried it, but it seems to be the starting point of a button press...
HTH 
squidev
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According to the MSDN documentation the BM_CLICK message generates a WM_LBUTTONDOWN and a WM_LBUTTONUP message.
See :
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/buttons/buttonreference/buttonmessages/bm_click.asp
I figured out that when I shift the focus to a button on a regular dialog and I hit the <enter> key no down and up movement is seen. Could it be possible that everything goes so fast that you cann't see it ?
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Why not just use Spy++ to see what messages are sent to the control and dialog? Once found, then it's just a matter of repeating them via code.
"Take only what you need and leave the land as you found it." - Native American Proverb
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try something like WM_GETDLGCODE , that might prevent the dialog from taking the focus from the controls ,and if it doesn't work then at design-time set the TAB order.
Regards
Farpointer
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Dear All,
Programmatically I want to find the actual physical path of running process.
With Regards
Manoj Kumar Batra
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Really easy. CreateToolhelp32Snapshot is your friend. Pass TH32CS_SNAPPROCESS, and use szExeFile of PROCESSENTRY32 structure.
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Thanks you a lot for the Help.
can I find the running process is COM, DCOM? through CreateToolhelp32Snapshot?
With Regards
Manoj Kumar Batra
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manojk_batra wrote: can I find the running process is COM, DCOM? through CreateToolhelp32Snapshot?
AFAIK, Nope that Not Possible...
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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or use
EnumProcesses();
OpenProcess();
EnumProcessModules()
GetModuleFileName()
gabby
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Dear One,
I am working in MFC Dialog application.I jump from Parent dialog to child dialogs.But when I close any child Dialog.I NEED TO KNOW THAT WHICH EVENT OF PARENT DIALOG IS CALLED SO I MAY DO SOME MANIPULATION OVER THERE.
Thanx in anticipation
asifrogers
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Are the child dialogs modal or modeless?
"Take only what you need and leave the land as you found it." - Native American Proverb
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Child dialogs are modal.
asifrogers
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asifrogers wrote: Child dialogs are modal.
if your child dialog are Modal.. then you must be calling like this..
CChildDlg chdDlg;
chdDlg.DoModal();
As the DoModal call is Blocking Function.. thats mean your Parent dialog will be blocked till you childDialog is Visible/running.. so if you want to perfrom task after closing of Child dialog you can write after the DoModal call
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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"Child dialog" is nearly always used in a general sense, hence the question.
"Take only what you need and leave the land as you found it." - Native American Proverb
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