Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all... - C / C++ / MFC Discussion Boards

Carlos Antollini25-Sep-02 4:23

25-Sep-02 4:23

You need to use automatic use of precompliled headers. Select project/settings (or ALT+F7) then, in the Project Settings Dialog, select the C/C++ tab, then select the Precompiled Headers item in the combo box, and select the Automatic use of precompliled headers option.

Regards

Carlos Antollini.
Sonork ID 100.10529 cantollini

Re: Inclusion of C file

Lanny Thompson25-Sep-02 4:29

Lanny Thompson

25-Sep-02 4:29

The project has set the c file to use a precompiled header (through stdafx.h).
Since the c file doesn't have an #include "stdafx.h" the compiler gets an error searching for it.
You just need to turn this option off for the file, through the file properties.

Hope this helps,
Lan

Re: Inclusion of C file

SteveKing25-Sep-02 4:29

SteveKing

25-Sep-02 4:29

also #include the "stdafx.h" file inside your c file.
Or turn off the use of precompiled headers.

Re: Inclusion of C file

RuiSantiago25-Sep-02 4:38

RuiSantiago

25-Sep-02 4:38

It's working, thank you all!!!

VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

Wizard_0125-Sep-02 4:12

Wizard_01

25-Sep-02 4:12

Hi,

Is it possile to tell VC++ that I wish to save all debug file to ONE directory. I dont like deleting this files from Debug directories Mad | :mad:

. Id like to delete only one Smile | :)

with all files !! Cool | :cool:

Wiizi

Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

Carlos Antollini25-Sep-02 4:21

Carlos Antollini

25-Sep-02 4:21

You can delete the files, using the menu item Clear....

Regards

Carlos Antollini.
Sonork ID 100.10529 cantollini

Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

Wizard_0125-Sep-02 4:21

Wizard_01

25-Sep-02 4:21

Where is it ? I cannot find this :/

Wiizi Smile | :)

Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

jmkhael25-Sep-02 4:56

jmkhael

25-Sep-02 4:56

i guess he wanted to say Clean, its under build menu

but i prefer to find every "debug" using the find files or folder then CTRL + A then SHIFT + DELETE!

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

Brian Delahunty25-Sep-02 5:02

Brian Delahunty

25-Sep-02 5:02

He probably means Clean. UNder the Build menu look for Clean. It shoudl be in there.

Regards,
Brian Dela Smile | :)

Re: VC++ 6.0 problem : *.pch,*.obj ... I havent so much space for all...

Carlos Antollini25-Sep-02 8:11

Carlos Antollini

25-Sep-02 8:11

I'm sorry, it's Build/Clean.... Blush | :O

Carlos Antollini.
Sonork ID 100.10529 cantollini

Message queue thread safety?

jamiehale25-Sep-02 3:53

jamiehale

25-Sep-02 3:53

Is the windows message queue thread safe? That is, can I have two threads using PostMessage() into a windows message pump?

J

Re: Message queue thread safety?

Tomasz Sowinski25-Sep-02 5:19

Tomasz Sowinski

25-Sep-02 5:19

jamiehale wrote:
can I have two threads using PostMessage() into a windows message pump?

Yes. Just remember that thread can have its own message queue. Are your threads queue-less (worker threads) or do they have one (UI threads)?

Tomasz Sowinski -- http://www.shooltz.com

*** Vodka. Connecting people. ***

Re: Message queue thread safety?

jamiehale25-Sep-02 5:27

jamiehale

25-Sep-02 5:27

I'm trying to decide if I can use my main thread (dialog app) to process asynchronous messages from clients, or if I need to start another thread to handle them. I was curious as to whether or not it would be safe to have another thread posting messages to the main thread - or alternatively, several threads posting to a message queue in yet another thread.

I think, regardless, I'm going to start another thread and build my own message pump (custom, not windows) simply because of the nature of the app...

J

Whats the sequence of events here ?

ns25-Sep-02 3:37

25-Sep-02 3:37

_ClRemoteButton p;

p.CreateDispatch("DllwithForm.Class1");

    p.CheckingPB(CMHandle,0,500);

AfxMessageBox ("back from dll");

CheckingPB is a function in a dll and it Sendmessages (not Postmessages) say 100 times in a loop.

When does the messagebox fire? After the function returns? Or as soon as I have called

p.CheckingPB(CMHandle,0,500);

, the code advances to the messagebox? I dont have any threads or anything.

Will I get the 100 messages before the messagebox? I cant really tell in my sample and need to know for sure.. Smile | :)

Thanks,
ns

Re: Whats the sequence of events here ?

jhwurmbach25-Sep-02 3:43

jhwurmbach

25-Sep-02 3:43

You have coded:

p.CheckingPB(CMHandle,0,500);	
AfxMessageBox ("back from dll");

So AfxMessageBox() is called after CheckingPB() has returned.
And as you have used SendMessage() your messages, you can be sure that they have been handled when the messagebox fires.

thanks!

ns25-Sep-02 3:48

25-Sep-02 3:48

So I dont need to send a message from the dll saying its done! It'll do all its stuff , and then after that the code carries on. THis is good news!

Thanks,
ns

Re: thanks!

Ravi Bhavnani25-Sep-02 4:32

Ravi Bhavnani

25-Sep-02 4:32

Correct.

However, if you'd used PostMessage, a hundred messages would be posted, the function would return, the message box would fire, and when Windows got a chance to (eventually) pump its message queue, the 100 posted messages would be handled.

So you're doing the right thing by using SendMessage.

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

How to make a progressCtrl vanish when its done?

ns25-Sep-02 3:08

25-Sep-02 3:08

My progressCtrl needs to be cleared or hidden away after its done. I dont see any function that will do it in that class. Also is it possible to send a message with Sendmessage that will clear the ctrl?

I am sending PBM_STEPIT messages from a dll, and am wondering how to notify the control that the operation is finished. I cant set the range before hand so it cycles through a few times. Any ideas on how one would notify it that the process in the remote dll is done ? Basically each time the dll function steps through a for loop, it sends off a PBM_STEPIT to the calling apps progressbar. At the end of the loop the progressbar needs to know all is done, and magically clear or vanish.

Appreciate any ideas..

Thanks,
ns

Re: How to make a progressCtrl vanish when its done?

jhwurmbach25-Sep-02 3:23

jhwurmbach

25-Sep-02 3:23

ns wrote:
I cant set the range before hand
If you can't know how long your task will take beforehand, maybe a CProgressCtrl is not the right control to display its working state? Would a flashing 'LED'-type button not be better to signal 'Process still running'?

ns wrote:
Any ideas on how one would notify it that the process in the remote dll is done
Your thread could send your CProgressCtrl-derived class a message (WM_APP+x or a Registered WM), on which it is set to 100%, a Timer is started and OnTimer disposes the CProgressCtrl.

Re: How to make a progressCtrl vanish when its done?

ns25-Sep-02 3:31

25-Sep-02 3:31

Flashing button _ I've never seen that! So it toggles from red to grey or something?

Still trying to make the control clear when done. I'm also trying to absorb the timer idea - need to read about... Smile | :)

Thanks,
ns

Re: How to make a progressCtrl vanish when its done?

jhwurmbach25-Sep-02 3:37

jhwurmbach

25-Sep-02 3:37

ns wrote:
Flashing button _ I've never seen that! So it toggles from red to grey or something?
I have made this once - From my task, I sent a message whose handler simply did blit a gey and a blue bitmap alternating to the same position on the screen. When the task was completed, I blitted background color there.
You could easily spend any amount of time with improving and beautifying and things like that, but at that time I specifically did not want to have a button flashing beautiful, but to show progress by alternating colors.

Re: How to make a progressCtrl vanish when its done?

Ravi Bhavnani25-Sep-02 4:34

Ravi Bhavnani

25-Sep-02 4:34

Simply hide the progress control when it's no longer required.

GetDlgItem (IDC_ProgressCtrl)->ShowWindow (SW_HIDE);

Be sure to show it (use SW_SHOW) just before you need it.

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: How to make a progressCtrl vanish when its done?

ns25-Sep-02 4:46

25-Sep-02 4:46

That works! QUestion - we hide it but dont clear it. So how come when it SW_SHOWs again it looks clear? (My progress bar is rather swift (could nt figure out what to do to make it take time in the sendmessage loop). SO I am 99% sure that when the bar shows up again, it starts from scratch! WHat made it clear?

Thanks,

Re: How to make a progressCtrl vanish when its done?

Ravi Bhavnani25-Sep-02 4:58

Ravi Bhavnani

25-Sep-02 4:58

ns wrote:
we hide it but dont clear it.

Correct. To clear (i.e. reset) the progress control, you'd need to call SetPos (0). The progress control doesn't automatically reset - your code must be causing that to happen.

ns wrote:
could nt figure out what to do to make it take time in the sendmessage loop

Aha! I use this trick:

CProgressCtrl* pProgCtrl = ...;
for (long nIndex=0; (nIndex < 100); nIndex++) {
   doSomeWork();
   pProgCtrl->SetPos (nIndex + 1);

   // Pump the message queue (needed to make Windows react to the SetPos())
   MSG   msg;
   while (::PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE)) {
         AfxGetThread()->PumpMessage();
   }

   // Pause for 50 mSec so that user "sees" progress
   Sleep (50);
}

If you use my TaskTimer[^] class, you can show your user the elasped and remaining times. Makes for good usability, but is certainly not necessary!

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: How to make a progressCtrl vanish when its done?

ns25-Sep-02 3:40

25-Sep-02 3:40

I tried:

(((CMainFrame*)AfxGetMainWnd())->m_wndStatusBar.m_WzdProgressCtrl).ModifyStyle(WS_VISIBLE, SWP_HIDEWINDOW   );

to get rid of my progressctrl or just clear it and it doesnt! WHat did I do wrong? Confused | :confused:

Thanks,
ns

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.