C / C++ / MFC

Re: I still DO NOT UNDERSTAND keyboard accelerators

27-Oct-03 10:44

Hi,

Does anyone know a good tutorial on keyboard accels, or does anyone want to give sime kind of lesson about it (like a checklist or something).

My problem is like this:

I have an app wich shows pictures, this works.

But every time a user presses the right-arrow button, the app needs to show a new picture (this is done by calling showNextPicture()).

I've already build showNextPicture(), but I can't build the link between the key and the function.

PS I'm using a dialog based app, with MFC support

Thanks for reading this!

Terry O'Nolley27-Oct-03 11:44

Terry O'Nolley

27-Oct-03 11:44

Look at PreTranslateMessage() and TranslateMessage() in your docs. It will point you to where you can determine what key was pressed and from there what handler to call.

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Re: I still DO NOT UNDERSTAND keyboard accelerators

BoudewijnEctor28-Oct-03 5:21

Re: I still DO NOT UNDERSTAND keyboard accelerators

28-Oct-03 5:21

OK, I've read it,

But Is still don't understand what exactly I've got to do with those messages etc. can you explain that to me?

Steve S28-Oct-03 21:41

Steve S

28-Oct-03 21:41

Add a menu option like ID_SHOW_NEXT, make this call your function, then map the arrow key to your menu option in the accelerator resource.

Steve S

Can't compile thread

BoudewijnEctor27-Oct-03 10:22

27-Oct-03 10:22

Hi there,

I've downloaded a tutorial from thecodeproject about tcp servers, and it contains the following code:

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])<br />
{<br />
    int nRetCode = 0;	<br />
	<br />
    cout << "Press ESCAPE to terminate program\r\n";<br />
    AfxBeginThread(ServerThread,0);<br />
    while(_getch()!=27);<br />
	<br />
    return nRetCode;<br />
}

and this

<br />
UINT  ServerThread(LPVOID pParam)<br />
{<br />
 //lots of other code<br />
 return 0;<br />
}<br />

I've copied the code into a neat console app with mfc functionality, but this isn't compiling.

How is this possible?

Re: Can't compile thread

Michael P Butler27-Oct-03 10:31

Michael P Butler

27-Oct-03 10:31

BoudewijnEctor wrote:
I've copied the code into a neat console app with mfc functionality, but this isn't compiling.

What error do you get?

Have you defined UINT ServerThread(LPVOID pParam) before the call to AfxBeginThread?

Michael

'Logic, my dear Zoe, merely enables one to be wrong with authority.' - The Doctor: The Wheel in Space

Re: Can't compile thread

BoudewijnEctor27-Oct-03 10:38

27-Oct-03 10:38

Do I hvae to define ServerThread before it's call (I'm not used to that)?

I'll try it, and if it works thank you a lot!!! Big Grin | :-D

Re: Can't compile thread

David Crow27-Oct-03 12:49

C++ Application for TemplatePrinter

27-Oct-03 12:49

BoudewijnEctor wrote:
Do I hvae to define ServerThread before it's call (I'm not used to that)?

No, but you do have to declare it.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

naxtell27-Oct-03 9:31

naxtell

27-Oct-03 9:31

Firstly, I am sorry if this is in the wrong area but I am looking for a way to create an ActiveX control that I can include in my ASP page for using MS's TemplatePrinter functionality. Here is the site at MSDN
I need to call IOleCommandTarget:Exec, but I'm confused on how to set this up. Does anyone have experience with this?
Thanks,
Nate

HC3025 Error : Tab Control

help_me_pleeze27-Oct-03 8:53

27-Oct-03 8:53

Hi
I am getting this error on making a diaolag box.
Actually i am making a tab control and i just designed a few boxes and i received this error. I have started over and over again but again i get this error . please help me on how do i get rid of this kind of error.

HC1002: Note:
Using existing phrase table: Gui.ph
HC3025: Warning: topic #1 of C:\Program Files\Microsoft Visual Studio\MyProjects\SidsteUdkald\hlp\.\afxcore.rtf
Jump to undefined Topic ID: "menu_record".
HC3025: Warning: topic #3 of C:\Program Files\Microsoft Visual Studio\MyProjects\SidsteUdkald\hlp\.\afxcore.rtf
Jump to undefined Topic ID: "HID_OLE_EDIT_LINKS".
HC3025: Warning: topic #3 of C:\Program Files\Microsoft Visual Studio\MyProjects\SidsteUdkald\hlp\.\afxcore.rtf
Jump to undefined Topic ID: "HID_EDIT_PASTE_LINK".
HC3025: Warning: topic #3 of CC:\Program Files\Microsoft Visual Studio\MyProjects\SidsteUdkald\hlp\.\afxcore.rtf
Jump to undefined Topic ID: "HID_OLE_INSERT_NEW".
HC1010: Note:
The following mapped Topic IDs were not used in any topic:
AFX_HIDP_UNREG_DONE
AFX_HIDP_GET_NOT_SUPPORTED
HID_HT_OBJECT
.
.
.
.
and it continues to a long listtttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt.

Thanks in advance.

David Crow27-Oct-03 9:21

27-Oct-03 9:21

It's from the help compiler. Are you making a help file? If not, you can just remove the dependency from your application.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

help_me_pleeze27-Oct-03 11:34

27-Oct-03 11:34

Hi david
yes i making the conext sensitive help.
I dont know why is this kind of error coming up .
It was ok a few days back.
How do i remove the "dependancy" from my application ?

Please elaborate.

Thanks for replying.

-----------
Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Five are left . They have "decided to fly off" and havent actually flown away yet.

David Crow27-Oct-03 12:53

27-Oct-03 12:53

help_me_pleeze wrote:
How do i remove the "dependancy" from my application ?

I believe you handle that in the Project Dependencies dialog box.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

help_me_pleeze28-Oct-03 10:32

28-Oct-03 10:32

there is nothing in the dependancy . the field is empty.

What else could be wrong ?

thanks.

David Crow28-Oct-03 10:37

28-Oct-03 10:37

help_me_pleeze wrote:
What else could be wrong ?

Not sure, as that is the only place I've ever needed to look. Is this VS6 or VS.NET?

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

help_me_pleeze29-Oct-03 6:20

29-Oct-03 6:20

It is visual Studio 6.
Thanks.

wm_create problems

super_matt27-Oct-03 7:59

27-Oct-03 7:59

Hello,
I am trying to write a simple little oo windowing library for opengl (mainly a wrapper for the c based windowing code); of course i had the standard wndproc callback as a class member problem, but i found a way around that, what i did was simple enough, i made WndProc static, but that meant i couldn't get at class members and then I noticed that the last paramater of CreateWindowEx was passed as the LPARAM of your wndproc callback on WM_CREATE. So, i passed 'this':

CreateWindowEx(blah...., this);

then in WM_CREATE:

SetWindowLong(hWnd, DWL_USER, lParam);

then whenever i have a WM_* callback i acces my class through

((MyClass*)GetWindowLong(hWnd, DWL_USER))->junkMyClassPointsTo...

but CreateWindowEx is always failing, none of the paramaters are bad, the only thing i can think of is 'this' and i don't know if WndProc-WM_CREATE is called then and if it is what is giving me the problem.

if anyone could help me with this, it would be most appreciated.
thank you,
-Matt

super_matt27-Oct-03 8:06

27-Oct-03 8:06

sorry, just to add on, i have also used GWL_USERDATA instead of DWL_USER if that makes a difference, thanks

Jason Henderson27-Oct-03 9:54

Jason Henderson

27-Oct-03 9:54

Try this article.[^]

"We have done so much in the last 2 years, and it doesn't happen by standing around with your finger in your ear, hoping everyone thinks that that's nice." - Donald Rumsfeld

Jason Henderson
blog

super_matt27-Oct-03 15:55

27-Oct-03 15:55

Thanks for the help, i applied all the stuff that was in that article, and it still didn't work, i also started to use WNDCLASSEX instead of WNDCLASS, but all that has done is stopped me from being able to register my class.

i type:

RegisterClassEx(&myWndClassEx);

and it throws an error, i printed the error with GetLastError, and the code is dec 87 or 0x57 and i don't know what that is or where to find the definition, this is becomming a major dilemna, any more help would be greatly appreciated

super_matt27-Oct-03 16:25

27-Oct-03 16:25

I've been working really hard on this now and i have finally figured out that my real problem is in CreateWindowEx

it is giving a return error of 6, which i found out is 'invalid handle' i think that is pointing at my hinstance, to instantiate my hinstance i call GetModuleHandle(NULL) and that is in a cpp file that is compiled into a static library, if this helps, that's great, i really need a fix for this problem, Thank you very much in advance if you can tell me what to do.

Jason Henderson27-Oct-03 16:54

Jason Henderson

27-Oct-03 16:54

WinMain should give you an hInstance you can use.

"We have done so much in the last 2 years, and it doesn't happen by standing around with your finger in your ear, hoping everyone thinks that that's nice." - Donald Rumsfeld

Jason Henderson
blog