dev-cpp-users Mailing List for Dev-C++

Does anyone know where I can get a good tutorial
online on how to create and use a .dll file.

__________________________________________________
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New DSL Internet Access from SBC & Yahoo!
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02/10/02 19:33:09, "Graeme Foster" <gr...@dr...> wrote :

>Hi, you need to typecast the pointer.
>
>the last parameter is of type lParam so you need to modify you code as
>follows (LPARAM)this.

I've tried everything I could. Even casting to a (void*) pointer. Impossible to compile.

Many thanks to all for help however...

--
Seb

Hi, you need to typecast the pointer.

the last parameter is of type lParam so you need to modify you code as
follows (LPARAM)this.

>you wrote...
>The errors occurs here :
>
>hHyperLinkWnd= CreateWindowEx(dwExStyle,
>                wcex.lpszClassName,
>                "",
>                dwStyle,
>                HypLinkData.cx,HypLinkData.cy,
>                size.cx,size.cy,
>                hWndParent,
>                NULL,
>                wcex.hInstance,
-->        (LPARAM)this); <- Here at the "this" pointer passing, compiling
crashes

Hi,
thanks  Ricardo for the response. however as Carlos said conio.c worked
fine.....

Saba
----- Original Message -----
From: "Ricardo L=F3pez Ruiz" <ri...@po...>
To: "Dev-C++" <dev...@li...>
Cc: "Saba Khalil Toor" <sab...@vu...>
Sent: Wednesday, October 02, 2002 3:12 PM
Subject: Re: [Dev-C++] querry


> you can use
>
> #include <conio_mingw.h>
>
> perhaps it works.

Just link the conio lib.

Project options/Linker option : -lconio

Kind regards

--
Seb

you can use

#include <conio_mingw.h>

perhaps it works.

First, Your mail is messed with the text you're answering and your
answer, and it's really hard to read it.

You shall define a LOGFONT before the use of the definition of the
CHOOSEFONT and initialize the lpLogFont field of CHOOSEFONT with it.
And then you select this on a HFONT, with CreateFontIndirect(LPLOGFONT).

Anyway, if it's there and I didn't see it, check the CHOOSEFONT
specification at your Win32 API reference, perhaps there is some field
you should initialize due to the use of some option and you're not
initializing it.
I did a simple experiment with it and I had the same error (win2k), till
I realized that I hadn't initialize the Flags field of CHOOSEFONT, and
then it disappeared.

MessageHi, Marc
This solved my problem. Thanks.
  ----- Original Message -----=20
  From: Marc Heiligers=20
  To: 'Vlada Djurovic' ; 'DevC++ help'=20
  Sent: Wednesday, October 02, 2002 10:04 AM
  Subject: RE: [Dev-C++] fonts


  Hi,
  =20
  I just had a look at msdn.microsoft.com and this is the example they =
provide:
  =20
HWND hwnd;                // owner window
HDC hdc;                  // display device context of owner window

CHOOSEFONT cf;            // common dialog box structure
static LOGFONT lf;        // logical font structure
static DWORD rgbCurrent;   // current text color
HFONT hfont, hfontPrev;
DWORD rgbPrev;

// Initialize CHOOSEFONT
ZeroMemory(&cf, sizeof(cf));
cf.lStructSize =3D sizeof (cf);
cf.hwndOwner =3D hwnd;
cf.lpLogFont =3D &lf;
cf.rgbColors =3D rgbCurrent;
cf.Flags =3D CF_SCREENFONTS | CF_EFFECTS;

if (ChooseFont(&cf)=3D=3DTRUE) {
    hfont =3D CreateFontIndirect(cf.lpLogFont);
    hfontPrev =3D SelectObject(hdc, hfont);
    rgbCurrent=3D cf.rgbColors;
    rgbPrev =3D SetTextColor(hdc, rgbCurrent);
 .
 .
 .
}

  The only differences I can see is that:
  1.    They specify CF_SCREENFONTS, but you said you tried that
  2.    They ZeroMemory the CHOOSEFONT struct before use.
  =20
  Common dialog examples can be found at:
  =20
  =
http://msdn.microsoft.com/library/default.asp?url=3D/library/en-us/winui/=
WinUI/WindowsUserInterface/UserInput/CommonDialogBoxLibrary/UsingCommonDi=
alogBoxes.asp
  =20
  Also the full set of flags can be found at:
  =20
  =
http://msdn.microsoft.com/library/default.asp?url=3D/library/en-us/winui/=
winui/windowsuserinterface/userinput/commondialogboxlibrary/commondialogb=
oxreference/commondialogboxstructures/choosefont.asp

  _____________________________
  Marc Heiligers
    -----Original Message-----
    From: Vlada Djurovic [mailto:dj...@im...]=20
    Sent: 02 October 2002 09:39 AM
    To: 'Marc Heiligers'; 'DevC++ help'
    Subject: RE: [Dev-C++] fonts


    Hi, Marc

    Thanks for your help, but it still doesn't work. I still get the =
same message. Can it be that I need to include some header files? I =
included windows.h and commdlg.h. Or maybe there is a problem with my =
Windows 200?

    =20

    Regards, Vlada

    =20

    -----Original Message-----
    From: dev...@li... =
[mailto:dev...@li...] On Behalf Of Marc =
Heiligers
    Sent: utorak, 1. oktobar 2002 15:27
    To: 'Vlada Djurovic'; DevC++ help
    Subject: RE: [Dev-C++] fonts

    =20

    Hi,

    =20

    I had a similar problem using the common font dialog in VB. As far =
as I can remember you have to specify a type of font to list using one =
of the flags otherwise Windows doesn't know which fonts to enumerate.

    =20

    CF_WYSIWYG, CF_PRINTERFONTS or CF_TTONLY

    =20

    =20

    _____________________________

    Marc Heiligers

      -----Original Message-----
      From: Vlada Djurovic [mailto:dj...@im...]=20
      Sent: 01 October 2002 12:57 PM
      To: DevC++ help
      Subject: [Dev-C++] fonts

      Hi.

      I have a strange problem: I want to use ChooseFont API function to =
display font selection dialog. I wrote a procedure, compiled, but when I =
start the application and press choose font from the menu, I get the =
message: "There are no fonts instaled. Open Fonts folder in Control =
Panel to install fonts.". Of course, fonts are installed. I have Windows =
2000 and DevCpp 4.9.5.0. Can anyone tell me what could cause this? Here =
is the code I wrote to display font dialog:

      =20

      case WM_COMMAND:

                 switch(LOWORD(wParam))

                 {

                     case ID_FORMAT_FONT:

                     {

                         CHOOSEFONT chFont;

                         chFont.lStructSize=3Dsizeof(CHOOSEFONT);

                         chFont.hwndOwner=3Dhwnd;

                         chFont.lpLogFont=3D&lFont;

                         chFont.iPointSize=3D1;

                         =
chFont.Flags=3DCF_INITTOLOGFONTSTRUCT|CF_EFFECTS;

                         chFont.rgbColors=3DRGB(0,0,0);

                         chFont.nFontType=3DREGULAR_FONTTYPE;

                         if(!ChooseFont(&chFont))

                             MessageBox(hwnd,"Error in font =
dialog","Error",MB_OK|MB_ICONSTOP);

                     }

                     break;

                 }

Hi. can any plz let me know why clrscr and gotoxy in conio.h is not working
i use dev c++ 4.

thankyou
saba

Hi,
 
I just had a look at msdn.microsoft.com and this is the example they
provide:
 
HWND hwnd;                // owner window

HDC hdc;                  // display device context of owner window



CHOOSEFONT cf;            // common dialog box structure

static LOGFONT lf;        // logical font structure

static DWORD rgbCurrent;   // current text color

HFONT hfont, hfontPrev;

DWORD rgbPrev;



// Initialize CHOOSEFONT

ZeroMemory(&cf, sizeof(cf));

cf.lStructSize = sizeof (cf);

cf.hwndOwner = hwnd;

cf.lpLogFont = &lf;

cf.rgbColors = rgbCurrent;

cf.Flags = CF_SCREENFONTS | CF_EFFECTS;



if (ChooseFont(&cf)==TRUE) {

    hfont = CreateFontIndirect(cf.lpLogFont);

    hfontPrev = SelectObject(hdc, hfont);

    rgbCurrent= cf.rgbColors;

    rgbPrev = SetTextColor(hdc, rgbCurrent);

 .

 .

 .

}


The only differences I can see is that:
1.    They specify CF_SCREENFONTS, but you said you tried that
2.    They ZeroMemory the CHOOSEFONT struct before use.
 
Common dialog examples can be found at:
 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI
/WindowsUserInterface/UserInput/CommonDialogBoxLibrary/UsingCommonDialogBoxe
s.asp
<http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinU
I/WindowsUserInterface/UserInput/CommonDialogBoxLibrary/UsingCommonDialogBox
es.asp> 
 
Also the full set of flags can be found at:
 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui
/windowsuserinterface/userinput/commondialogboxlibrary/commondialogboxrefere
nce/commondialogboxstructures/choosefont.asp
<http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winu
i/windowsuserinterface/userinput/commondialogboxlibrary/commondialogboxrefer
ence/commondialogboxstructures/choosefont.asp> 
 
_____________________________
Marc Heiligers
-----Original Message-----
From: Vlada Djurovic [mailto:dj...@im...] 
Sent: 02 October 2002 09:39 AM
To: 'Marc Heiligers'; 'DevC++ help'
Subject: RE: [Dev-C++] fonts


Hi, Marc
Thanks for your help, but it still doesn't work. I still get the same
message. Can it be that I need to include some header files? I included
windows.h and commdlg.h. Or maybe there is a problem with my Windows 200?
 
Regards, Vlada
 
-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Marc
Heiligers
Sent: utorak, 1. oktobar 2002 15:27
To: 'Vlada Djurovic'; DevC++ help
Subject: RE: [Dev-C++] fonts
 
Hi,
 
I had a similar problem using the common font dialog in VB. As far as I can
remember you have to specify a type of font to list using one of the flags
otherwise Windows doesn't know which fonts to enumerate.
 
CF_WYSIWYG, CF_PRINTERFONTS or CF_TTONLY
 
 
_____________________________
Marc Heiligers
-----Original Message-----
From: Vlada Djurovic [mailto:dj...@im...] 
Sent: 01 October 2002 12:57 PM
To: DevC++ help
Subject: [Dev-C++] fonts
Hi.
I have a strange problem: I want to use ChooseFont API function to display
font selection dialog. I wrote a procedure, compiled, but when I start the
application and press choose font from the menu, I get the message: "There
are no fonts instaled. Open Fonts folder in Control Panel to install
fonts.". Of course, fonts are installed. I have Windows 2000 and DevCpp
4.9.5.0. Can anyone tell me what could cause this? Here is the code I wrote
to display font dialog:
 
case WM_COMMAND:
           switch(LOWORD(wParam))
           {
               case ID_FORMAT_FONT:
               {
                   CHOOSEFONT chFont;
                   chFont.lStructSize=sizeof(CHOOSEFONT);
                   chFont.hwndOwner=hwnd;
                   chFont.lpLogFont=&lFont;
                   chFont.iPointSize=1;
                   chFont.Flags=CF_INITTOLOGFONTSTRUCT|CF_EFFECTS;
                   chFont.rgbColors=RGB(0,0,0);
                   chFont.nFontType=REGULAR_FONTTYPE;
                   if(!ChooseFont(&chFont))
                       MessageBox(hwnd,"Error in font
dialog","Error",MB_OK|MB_ICONSTOP);
               }
               break;
           }

Hi, Marc
Thanks for your help, but it still doesn't work. I still get the same
message. Can it be that I need to include some header files? I included
windows.h and commdlg.h. Or maybe there is a problem with my Windows
200?
 
Regards, Vlada
 
-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Marc
Heiligers
Sent: utorak, 1. oktobar 2002 15:27
To: 'Vlada Djurovic'; DevC++ help
Subject: RE: [Dev-C++] fonts
 
Hi,
 
I had a similar problem using the common font dialog in VB. As far as I
can remember you have to specify a type of font to list using one of the
flags otherwise Windows doesn't know which fonts to enumerate.
 
CF_WYSIWYG, CF_PRINTERFONTS or CF_TTONLY
 
 
_____________________________
Marc Heiligers
-----Original Message-----
From: Vlada Djurovic [mailto:dj...@im...] 
Sent: 01 October 2002 12:57 PM
To: DevC++ help
Subject: [Dev-C++] fonts
Hi.
I have a strange problem: I want to use ChooseFont API function to
display font selection dialog. I wrote a procedure, compiled, but when I
start the application and press choose font from the menu, I get the
message: "There are no fonts instaled. Open Fonts folder in Control
Panel to install fonts.". Of course, fonts are installed. I have Windows
2000 and DevCpp 4.9.5.0. Can anyone tell me what could cause this? Here
is the code I wrote to display font dialog:
 
case WM_COMMAND:
           switch(LOWORD(wParam))
           {
               case ID_FORMAT_FONT:
               {
                   CHOOSEFONT chFont;
                   chFont.lStructSize=sizeof(CHOOSEFONT);
                   chFont.hwndOwner=hwnd;
                   chFont.lpLogFont=&lFont;
                   chFont.iPointSize=1;
                   chFont.Flags=CF_INITTOLOGFONTSTRUCT|CF_EFFECTS;
                   chFont.rgbColors=RGB(0,0,0);
                   chFont.nFontType=REGULAR_FONTTYPE;
                   if(!ChooseFont(&chFont))
                       MessageBox(hwnd,"Error in font
dialog","Error",MB_OK|MB_ICONSTOP);
               }
               break;
           }

hi guys,

I have a class, with a member function
which is actually a template.
if i try to instantiate it , gives an error
saying..

'illegal use of this type as an expression'

it seems to be a windows specific thing, as the same
code got compiled well, on Linux.

..Santosh