Calling an function in a DLL - C / C++ / MFC Discussion Boards

messages13-Dec-06 19:53

13-Dec-06 19:53

When we must use of this case of course I know its depends to our program
I cant understand what is it typedef CMap<UINT,UINT,UINT,UINT> Map; Map m.

Re: Question

prasad_som13-Dec-06 20:05

prasad_som

13-Dec-06 20:05

messages wrote:
typedef

typedef is keyword for declaring synonym for type declarations.
i.e.
typedef char TCHAR;
Now, TCHAR
can be used instead of char.

messages wrote:
what is it typedef CMap<uint,uint,uint,uint> Map; Map m.

typedef CMap<UINT,UINT,UINT,UINT> Map;

This statement indicates Map is synonym of CMap<UINT,UINT,UINT,UINT> .So statement
Map m ; is actually CMap<UINT,UINT,UINT,UINT> m;

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Question

Laxman Auti13-Dec-06 19:20

Laxman Auti

13-Dec-06 19:20

messages wrote:
I want to know what is it CMap<> or CList<>

These are wrapper classes for STL::map and STL:list respectively.
Go through the following article for more info about maps.
http://www.codeproject.com/cpp/cmap_howto.asp[^]

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Re: Question

messages13-Dec-06 19:28

messages

13-Dec-06 19:28

Thank you this link is very helpful Laugh | :laugh:

Re: Question

prasad_som13-Dec-06 19:42

prasad_som

13-Dec-06 19:42

A_LaxmanThese are wrapper classes for STL::map and STL:list respectively

No, these aren't.

A_LaxmanGo through the following article for more info about maps.
http://www.codeproject.com/cpp/cmap_howto.asp[^]

You can see , MFC has its own implementation.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Question

Laxman Auti13-Dec-06 19:58

Laxman Auti

13-Dec-06 19:58

prasad_som wrote:
You can see , MFC has its own implementation.

Yes, There is seperate implementation for CMap in MFC.
Thanks for update. Smile | :)

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

TextOut & True Type Fonts

PsychicSmurf13-Dec-06 0:02

PsychicSmurf

13-Dec-06 0:02

I have a transparent image (BMP) that I want to be able to place text on.

I have used SekBkMode to set TRANSPARENT, and also set the brush to bsClear.

This works great for old-style fonts, however True Type fonts seem to have some kind of anti-aliasing built it. When these fonts are drawn onto the canvas (at larger font sizes), the curves are edged in a colour halfway between the font colour and the transparent colour which makes them a little unsightly.

I can't just copy whats behind the text and use that as a background, as the layer beneath is liable to change at any time.

Is there any way to disable this effect?
Can I use fonts like Arial or Copperplate-Gothic-Light in font sizes above 16 without getting strange colours?

Calling an function in a DLL

JJeffrey12-Dec-06 23:59

JJeffrey

12-Dec-06 23:59

I'm sorry to disturb all of you, I feel like I'm missing something here.

I'm trying to use call a function in a DLL I have written and have so far done this:

DLL Side

int __stdcall Topo(LPSTR Param)<br />
{<br />
<code><br />
}

Calling Function side

typedef int (__stdcall * FuncPtr)(LPTSTR);<br />
<br />
int APIENTRY WinMain(HINSTANCE hInstance,<br />
                     HINSTANCE hPrevInstance,<br />
                     LPSTR     lpCmdLine,<br />
                     int       nCmdShow)<br />
{<br />
	HMODULE TopoPtr;<br />
	FuncPtr TopoFunc;<br />
	CHAR Output[50]={0};<br />
<br />
	if (TopoPtr = (HMODULE) LoadLibrary ("<location of DLL>") )<br />
	{		<br />
		TopoFunc  = (FuncPtr)GetProcAddress(TopoPtr, "Topo");<br />
		if ( TopoFunc && TopoPtr )<br />
		{<br />
			TopoFunc(<Params>);<br />
		}<br />
		FreeLibrary ( TopoPtr );<br />
	}<br />
<br />
	return 0;<br />
}

Export.def

LIBRARY CheckTopo<br />
EXPORTS<br />
     Topo	@1

The error is this: When I call TopoFunc, I get a stack overflow. Tracing it by stepping through, I find that the stack overflow occurs BEFORE I enter the code in the DLL Side. Is there something wrong with my calling of the function? Or is it nothing to do with that and that I should be looking at something else?

Re: Calling an function in a DLL

prasad_som13-Dec-06 0:14

prasad_som

13-Dec-06 0:14

JJeffrey wrote:
TopoFunc();

Did you miss to pass string here ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Calling an function in a DLL

JJeffrey13-Dec-06 14:21

JJeffrey

13-Dec-06 14:21

No, I just removed all the irrelevant code. I did remember to pass the string. It is a LPTSTR.

And as to the other poster's statement, been there, done that. It is calling into the debug dll correctly, but the stack overflows when the program steps through from the calling EXE to the debug DLL in VC++

Re: Calling an function in a DLL

ShilpiP13-Dec-06 0:52

ShilpiP

13-Dec-06 0:52

in loadlibrary first u enter the dll name. and to debug dll ,open workspace of dll and open Projects->setting->Debug and in executable for debug section ,give path name of client exe and then debug it

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

Setting a menu to OWNERDRAW

manustone12-Dec-06 23:24

manustone

12-Dec-06 23:24

Hi All
I've got a menu to attach to my class derived from CFrameWindow.
I would like to set my menu to OWNERDRAW so that I can draw it and customize the layout.

In the constructor of my window class I put the following but GetMenuItemInfo doesn't work.
It never enters the if block so that I can set the MFT_OWNEDRAW style.
Retrieving the error code I've got 87 ERROR_INVALID_PARAMETER

Can you help me with that issue?
Regards
manustone

<br />
CGuiTestFrameWnd::CGuiTestFrameWnd()<br />
{<br />
	<br />
	Create( NULL, _T("Test"), WS_OVERLAPPEDWINDOW );<br />
	CMenu menu;<br />
	menu.LoadMenuA( MAKEINTRESOURCE(IDR_MENU1) );	<br />
	SetMenu( &menu );	 <br />
	<br />
	<br />
	MENUITEMINFO itmInfo;<br />
	//Here it doesn't work. It never enters in<br />
        //the block<br />
	if(menu.GetMenuItemInfo( 1, &itmInfo ))<br />
	{<br />
		itmInfo.fType |= MFT_OWNERDRAW;<br />
		menu.SetMenuItemInfo( 0, &itmInfo );<br />
	}<br />
<br />
	menu.Detach();<br />
		<br />
}<br />

Re: Setting a menu to OWNERDRAW

Mark Salsbery13-Dec-06 6:02

Mark Salsbery

13-Dec-06 6:02

manustone wrote:
if(menu.GetMenuItemInfo( 1, &itmInfo ))

What is the "1" you are passing here? Is it an ID or a position? If it's a position then you
need to call like this:

if(menu.GetMenuItemInfo( 1, &itmInfo. TRUE ))
...

Re: Setting a menu to OWNERDRAW

Hamid_RT13-Dec-06 18:18

Hamid_RT

13-Dec-06 18:18

if your problem is of GetMenuItemInfo see this examples "Plug-in DLLs and Menu Interfaces " on codeproject(dll) it works with this function maybe it some helpfuls Smile | :)

WhiteSky

how can i get CLSID from ProgID in managed c++

Banks K12-Dec-06 23:19

Banks K

12-Dec-06 23:19

Hi all,

I want CLSID from prog id in managed code. i am using code as follows but

CLSID clsid;
HRESULT hr;
hr= CLSIDFromProID(OLESTR(“AtlServer.MyMath”),&clsid);

it is not working.
please tell me which namespace i have to use and which function.

thanks
bankey.

Re: how can i get CLSID from ProgID in managed c++

Laxman Auti13-Dec-06 20:10

Laxman Auti

13-Dec-06 20:10

Banks K wrote:
I want CLSID from prog id in managed code

Please post on proper forum to get answer. Rose | [Rose]

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

MFC

Bravoone_200612-Dec-06 23:12

Bravoone_2006

12-Dec-06 23:12

How to update just 2 field from my table ?

i whant to edit a field from my database-> table but i dont know how to update just that field!
My database visual fox pro 6.0
Database name : Database_Pers
Table name : city
my string to update in the field city is CString sTemp;
this is :
CDatabase_Pers pPers;
...

pPers.Edit();
pPers.m_city = sTemp;

....This is update ....but if update all i have this error:
SQL:statement too long !
pPers.Update(); <-This generate this error !

Bravoone

Re: MFC

David Crow13-Dec-06 5:41

David Crow

13-Dec-06 5:41

Bravoone_2006 wrote:
SQL:statement too long !

You've still not indicated how long the SQL statement is.

Bravoone_2006 wrote:
pPers.Update(); <-This generate this error !

Step into this method to see what the actual SQL statement looks like. That will go a long way towards finding the problem.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: MFC

Hamid_RT13-Dec-06 18:12

Hamid_RT

13-Dec-06 18:12

if your problem is on sql I suggest aks on sql forum Smile | :)

WhiteSky

about MFC

rajaasif12-Dec-06 23:04

rajaasif

12-Dec-06 23:04

Please can anybody give me any cites from where i could learn MFC

gujar

Re: about MFC

Rajesh R Subramanian12-Dec-06 23:18

Rajesh R Subramanian

12-Dec-06 23:18

You're here already! I don't know a website that's better than the CodeProject to learn MFC. Get a life dude.

Nobody can give you wiser advice than yourself. - Cicero
ப்ரம்மா

Re: about MFC

ShilpiP12-Dec-06 23:45

ShilpiP

12-Dec-06 23:45

I think this site will help u

http://functionx.com/visualc/index.htm[^] Smile | :)

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

Re: about MFC

Hamid_RT13-Dec-06 0:20

Hamid_RT

13-Dec-06 0:20

www.codeproject.com and www.MSDN.com Smile | :)

WhiteSky

Re: about MFC

Maximilien13-Dec-06 3:42

Maximilien

13-Dec-06 3:42

Seatle ?

Maximilien Lincourt
Your Head A Splode - Strong Bad

How edit the formicon and -text

b43r_3oo312-Dec-06 22:23

b43r_3oo3

12-Dec-06 22:23

Hello,

I have an existing Programm without sources and i want edit the forms icon and text. is there any API Function/Call or something else?

Greetings from germany

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