Re: Combo control problems - C / C++ / MFC Discussion Boards

Re: what message is sent to SDI MFC program when I click on the program's icon on taskbar to redisplay it?

Ravi Bhavnani13-Jun-02 6:58

13-Jun-02 6:58

The messages are probably being sent to your mainframe window.

/ravi

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

Re: what message is sent to SDI MFC program when I click on the program's icon on taskbar to redisplay it?

lucy13-Jun-02 7:03

lucy

13-Jun-02 7:03

no. I added breakpoint at both
CMyView::OnShowWindow()
and
CMainFrame::OnShowWindow().

but it only stops when my program starts, not when it is restored from the taskbar. why?? Confused | :confused:

Re: what message is sent to SDI MFC program when I click on the program's icon on taskbar to redisplay it?

srinivas vaithianathan13-Jun-02 7:53

srinivas vaithianathan

13-Jun-02 7:53

Try WM_ACTIVATE, the message tells you whether the app was in minimized state when it got WM_ACTIVATE message. To find out what messages a app receives you can use Microsoft Spy++.

solved. Thanks!

lucy13-Jun-02 8:22

lucy

13-Jun-02 8:22

got it working now. Thanks a lot!

Combo control problems

Travis D. Mathison13-Jun-02 6:10

Travis D. Mathison

13-Jun-02 6:10

I have a combo list control in my application which I populate with strings on startup. On my system (WinXP && VS.NET) it runs perfectly, however on all the other systems I've tried it on (targeting Win2000 && NT) the combo list control does not populate with my strings.

I've looked all through my code and cant see the problem, I've stepped through the code but like I said .. everything works just fine on my system. Is there something I should be linking in with my program? Has anybody else run into this? I've statically linked the MFC libraries to the program since the DLL's will most likely -not- be on the client systems..

Thanks in advance for any ideas..

Travis D. Mathison ---
--- After three days without programming, life becomes meaningless ...

Re: Combo control problems

redeemer13-Jun-02 7:06

redeemer

13-Jun-02 7:06

Is your problem that when you press the down-pointing arrow, only a small line appears at the bottom of the control and it looks like no string has been added to the control?

Re: Combo control problems

Travis D. Mathison13-Jun-02 7:02

Travis D. Mathison

13-Jun-02 7:02

That is exactly what it does. I was reading around CP and saw things on setting the height of the listbox that gets dropped down .. am I on the right track? If so, why would it work without doing that on my development system but not on the clients systems?

Travis D. Mathison ---
--- After ~~three~~ two days without programming, life becomes meaningless ...

Re: Combo control problems

srinivas vaithianathan13-Jun-02 7:59

srinivas vaithianathan

13-Jun-02 7:59

may be you should resize the combo box control. from the dialog editor click on the down arrow of the combo box and then resize the drop-down box. and build your project

Re: Combo control problems

Travis D. Mathison13-Jun-02 8:03

Travis D. Mathison

13-Jun-02 8:03

Yeah, I realized this a little bit ago .. I don't know what the heck I was thinking. This issue was a no-brainer -- been one of those days.. thanks anyways :P

Travis D. Mathison ---
--- After three days without programming, life becomes meaningless ...

Re: Combo control problems

redeemer13-Jun-02 8:52

redeemer

13-Jun-02 8:52

Use MoveWindow and the height and width parameter defines the dropdown area.

Symbolic Letter in StaticText-Field

13-Jun-02 5:53

How can I place a single symbolic letter in a StaticText-Field???

for example:

Angle (show Symbol: APLPHA) : 90°
Angle (show Symbol: BETA): 30°

Re: Symbolic Letter in StaticText-Field

Roger Allen13-Jun-02 6:09

Roger Allen

13-Jun-02 6:09

Your best way of doing this is to create a member variable CFont object and create a font and set it for that static text control. You can then set the right character index for the reqquired symbol.
Take a look at the character map table supplied in windows and find a common font that supports the character(s) you need. Then create that font in code and apply it to the control.

Roger Allen
Sonork 100.10016

If I had a quote, it would be a very good one.

Re: Symbolic Letter in StaticText-Field

13-Jun-02 6:13

That's not the problem,

I try to explain:

I would have a "normal Text" with a single symbolic Character! I need this, because I would explain a mathematical form in a dialog!

Re: Symbolic Letter in StaticText-Field

Jeremy Falcon13-Jun-02 7:14

Jeremy Falcon

13-Jun-02 7:14

ANSI has primitive support for greek letters, but you can use some.
Use Unicode.
Create a custom font. (safest bet)
Bark like a dog!

Jeremy L. Falcon<nobr>
Homepage : Sonork = 100.16311

"It was a blind man who taught me how to see." - Aerosmith

Is there any way of finding a string's width on the screen? (non-MFC)

redeemer13-Jun-02 5:51

redeemer

13-Jun-02 5:51

Thanks.

Re: Is there any way of finding a string's width on the screen? (non-MFC)

_Magnus_13-Jun-02 5:49

_Magnus_

13-Jun-02 5:49

A ruler?

GetTextExtentPoint32() is another way.

/Magnus

Re: Is there any way of finding a string's width on the screen? (non-MFC)

redeemer13-Jun-02 6:09

redeemer

13-Jun-02 6:09

Thanks, i think i'll go with the API Smile | :)

how do you set a Device Context's font?

Re: Is there any way of finding a string's width on the screen? (non-MFC)

_Magnus_13-Jun-02 6:12

_Magnus_

13-Jun-02 6:12

u can use SelectObject()

/Magnus

Re: Is there any way of finding a string's width on the screen? (non-MFC)

redeemer13-Jun-02 6:27

redeemer

13-Jun-02 6:27

Can you give me an example? I'm not good at that stuff Smile | :)

Thanks

Re: Is there any way of finding a string's width on the screen? (non-MFC)

C^hris L^osinger13-Jun-02 7:07

C^hris L^osinger

13-Jun-02 7:07

something like this:

HFONT hNewFont = ::CreateFont(...);
HFONT hOld = ::SelectObject(hDC, hNewFont);
... 
::SelectObject(hDC, hOld);
DeleteObject(hNewFont);

-c

Cheap Oil. It's worth it!

Image Processing?

Fatal Error

Sidney13-Jun-02 5:42

Sidney

13-Jun-02 5:42

Hi everyone,

I have an error like this:

Linking...
Creating library Debug/PrsPunct32.lib and object Debug/PrsPunct32.exp
Debug/PrsPunct32.exe : warning LNK4086: entrypoint "_mainCRTStartup" is not __stdcall with 12 bytes of arguments; image may not run
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/PrsPunct32.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

I am using VC++ 6.0 What's causing this? and how can I solve this?

Thanks/Regards
Sidney

Re: Fatal Error

Le centriste13-Jun-02 5:50

Le centriste

13-Jun-02 5:50

try compiling with /Gz option

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

Re: Fatal Error

Sidney13-Jun-02 7:02

Sidney

13-Jun-02 7:02

Hi Mich,

I still get the same error even if I add the /Gz option. Any Idea Smile | :)

Thanks/Regards
Sidney

Re: Fatal Error

srinivas vaithianathan13-Jun-02 8:14

srinivas vaithianathan

13-Jun-02 8:14

Looks like you are building a DLL. make sure you have all your project settings correct. use the app wizard.

Serial Comms

Derek Lakin13-Jun-02 5:06

Derek Lakin

13-Jun-02 5:06

Having established a serial comms connection to COM 1 to access a modem it is possible to send AT command strings for the modem to interpret. In this way I can instruct a modem to dial a particular number and connect to a receiving modem and application.

Once the connection has been made the modem goes into online mode and so any data then sent to the COM port is then sent over the connection to the receiving modem and application. If I want to end the call from the initiating end, presumably I can just call CloseHandle on the handle created with the initial call to CreateFile and that will end the call.

However, from the receiving end, I would need to return the modem to command mode to issue the ATH command to terminate the call. Orinarily you would issue the escape sequence "+++" to get the modem into command mode. However, if I send "+++" to an open serial port it will just send that data over the connection Frown | :(

How can I get a modem back into command mode? Or am I going about it the wrong way?

I have already tried TAPI, unsuccessfully (see earlier posts), hence my attempt to use serial port comms.

Derek Lakin.
I wish I was what I thought I was when I wished I was what I am.

Salamander Software Ltd.

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