Re: For Rage - C / C++ / MFC Discussion Boards

Paul Farry14-Apr-03 2:49

14-Apr-03 2:49

I don't really mind. I'd prefer straight Win32code, but really it is for learning, so MFC would also be fine.

I just would like to see an example of how to do it.

Re: Create Multiple Windows

Rage14-Apr-03 6:22

Rage

14-Apr-03 6:22

in MFC Version

Create your main and template resources. Create a class for each of them, CMainDlg and CTemplateDlg.
In InitInstance(), launch your maindlg with a

CMainDlg dlg;
dlg.DoModal();

In the CMainDlg::OnInitDialog()
Create your dlgs like this :

CTemplateDlg dlg1;
dlg1.Create(...); // You can customize it (Name, size, ... after creating it, sinceit will show only after the <code>OnInitDialog</code> returns.)

do this for each dlg to set their special features. If they are all identical, you can create a table of 8 CDTemplateDlg and loop on them to launch them one after another.

Would be the same if the main dialog was from a doc/view architecture (SDI may be better in this case). In the CMainFrame::PreCreateWindow function, launch the 8 dialogs as explained.

In Win32, it is a little bit more complicated to get this, but it is nearly the same, except you will have to catch the Winodws messages by yourself.

~RaGE();

Re: Create Multiple Windows

Paul Farry14-Apr-03 11:30

Paul Farry

14-Apr-03 11:30

I'm really sorry.

I get what your saying, I just can't fill in the blanks.

Are there any full example projects that do this?

LoadIcon question

Jump_Around14-Apr-03 1:24

Jump_Around

14-Apr-03 1:24

I want to load the icon resource form an application.

What I know by now is that I will use LoadIcon function

HICON LoadIcon(HINSTANCE hInstance, LPCTSTR lpIconName);

how to get hInstance from an application (for example for WORD 2000)?

Please help

Re: LoadIcon question

Martyn Pearson14-Apr-03 5:33

Martyn Pearson

14-Apr-03 5:33

Actually, you might be better off using ExtractIcon()

For an MFC application....

// #define ICON_INDEX and APPLICATION_FILENAME<br />
<br />
int nIconIndex = ICON_INDEX;<br />
CString strExeFilename = APPLICATION_FILENAME;<br />
<br />
HICON hIcon = ::ExtractIcon(AfxGetInstanceHandle(), strExeFilename, nIconIndex);

Edited to add : Check out ExtractIconEx() too - this allows you to obtain small and large icons.

Re: LoadIcon question

Rage14-Apr-03 6:36

Rage

14-Apr-03 6:36

Martyn Pearson wrote:
For an MFC application....

I was about to give the same answer as you, but somwthing told me that the guy who has asked it was not programming using MFC. Then I looked for how to get the hInstance from another application that the own (which is needed with ::LoadIcon()), and ... I did not find how to do it. Do you know how to do this ? I mean, retrieveing the hInstance of another running instance (with or without MFC) ?

~RaGE();

Re: For Rage

Toni7814-Apr-03 9:53

Toni78

14-Apr-03 9:53

I have never extracted an icon from an application because I never had to do it but I do know that ExtractIcon works for API as well. I also remember that if I wanted to get get the module of an application using API I would call HMODULE GetModuleHandle( LPCTSTR pModuleName )
where pModuleName would be the name of a dll or exe. If you use null then you get the current module. This is what I remember doing two years ago, because after that I started working on Unix machines and I kind of forgot most of the API that I knew. I didn't know much anyways.

// Afterall I realized that even my comment lines have bugs

Re: For Rage

Jump_Around14-Apr-03 11:14

Jump_Around

14-Apr-03 11:14

Thank for your advices. They are perfect and works fine Smile | :)

So i have another task for you Smile | :)

Lets say I have a file and I want to represnt this file (in the list control) by using the icon of the application which this file is related to. (sic anyone understands ?). How to find the application which is the "parent" of a particular file.

Please help

Re: For Rage

Martyn Pearson14-Apr-03 23:51

Martyn Pearson

14-Apr-03 23:51

There could be a function that does this for you - have a browse through the shell functions and interfaces to see if anything pops out. However, you could use this method....

Say for example, you are representing an MS Word document, myfile.doc

If you look up ".doc" in the registry under HKEY_CLASSES_ROOT, you will find the default value is something like "Word.Document.8" - it is on my machine, this may well vary depending on the version of MS Word you have installed.

If you then find "Word.Document.8" under HKEY_CLASSES_ROOT, you will find it has a number of subkeys. Navigate through these subkeys to find the default value for the entry shell/Open/command. (in this case, the full registry path is HKEY_CLASSES_ROOT/Word.Document.8/shell/Open/command)

This contains the name of the executable, which you can then interrogate for the icon!

Hope this helps!

Re: For Rage

Jump_Around15-Apr-03 1:06

Jump_Around

15-Apr-03 1:06

Thanks but someone helped me already. There is a fuction ExtractAssociatedIcon which does exactly what I need.
Tank you for your help. I really apreciate that.

GDI+

Emiliano14-Apr-03 1:18

Emiliano

14-Apr-03 1:18

Hello i am trying to use the gdiplus.h but i'am not sure how to setup the vc project. I have downloaded the gdiplus.dll but i think that is not enough. Any ideas or link where i could get the relevant settings to use gdi+ in my project

Any help would be a life saver!!

Re: GDI+

Zdeslav Vojkovic14-Apr-03 1:54

Zdeslav Vojkovic

14-Apr-03 1:54

you might find following articles useful:
http://www.codeproject.com/vcpp/gdiplus/startinggdiplus.asp[^]
http://www.codeproject.com/useritems/CodeMaze.asp[^]
http://www.codeproject.com/useritems/VC6GdiPlusMacro.asp[^]

Re: GDI+

Anonymous14-Apr-03 3:37

Anonymous

14-Apr-03 3:37

Thanks for your help, I have found good material and i have managed to start work and get every thing to link and compile.

Smile | :)

Import data file as a Matrix

calgonit14-Apr-03 1:06

calgonit

14-Apr-03 1:06

I have a ".txt" file with m-rows and n-columns of integer values. I want to load them as a m x n matrix. Each value is between tabs.

I would like an implementation of that.

Thank you very much!

Re: Import data file as a Matrix

Rage14-Apr-03 2:56

Rage

14-Apr-03 2:56

Something like :

int table[m][n];

FILE *f=fopen("file.txt","rt");
if (f!=NULL)
{
   for (int i=0;i<m;i++)
   {
      for (int j=0;j<n;j++)
      {
        sscanf(f,"%i[here is a tab]",&table[i][j]);
      }
   }
}

fclose(f);

This is pure C, since I do not know what our app is like. This does not work as is, but it should give you a way to implemente it.

~RaGE();

Converting an icon into a bitmap

Nicolas Bonamy14-Apr-03 0:18

Nicolas Bonamy

14-Apr-03 0:18

Hello,

I need to convert icons to bitmaps. I have written something that works OK on 2000 and other systems but that fail on XP: the transparent color is replaced by black instead of being well transparent. Maybe it is related to getting a "too many color" icon were the 256 colors version is enough for what I am doing...

Does anyone has something to suggest?

Regards

Re: Converting an icon into a bitmap

Liorsh14-Apr-03 0:44

Liorsh

14-Apr-03 0:44

Can you send me the code?
I worked on somthing that does this exact thing some time ago and i might be able to help you....

Re: Converting an icon into a bitmap

Nicolas Bonamy14-Apr-03 1:30

Nicolas Bonamy

14-Apr-03 1:30

Does your stuff work? My code is just around 10 lines of code where I build a DC, select an empty bitmap into, draw the icon with DrawIconEx in DI_NORMAL mode and that's it. Do you do something similar?

Re: Converting an icon into a bitmap

Iain Clarke, Warrior Programmer14-Apr-03 0:49

Iain Clarke, Warrior Programmer

14-Apr-03 0:49

If you haven't already, you need to look at GetIconInfo. This function fills in a structure
with two bitmap. One is the colour info, and one is the transparency map. The transparent
part *should* be black on the colur bitmap, but you can separate it using the 2nd bitmap
for reference.

Iain.

Re: Converting an icon into a bitmap

Nicolas Bonamy14-Apr-03 1:28

Nicolas Bonamy

14-Apr-03 1:28

Iain,

I saw this one and definitly wanted to take a look at it... Thanks for the infor.

Regards

Re: Converting an icon into a bitmap

Nicolas Bonamy14-Apr-03 9:01

Nicolas Bonamy

14-Apr-03 9:01

Okay tested it but it appears that the bitmaps returned are wrong. Basically I get my icon from the system image list in where the icons are 32 bit with alpha. When I get them I get a 256 color version but the conversion is wrong: some parts of the mask that are gray become black where as in the icon the matching pixel gets black also. So I get black.

What I need now is to force the extraction in 256 colors. The problem is that I get a handle to an icon in the system image list and I do not know where this icon is located on disk so I can't really extract it from the .ico file.

Anyone?

Sending text as popup message

Mr Bose Dayala14-Apr-03 0:17

Mr Bose Dayala

14-Apr-03 0:17

Hi,
can anybody let me know how to send a text just like popup message to another system(by selecting the username from dropdown box) in LAN through program.

thanx in advance
Thomas.

ThomasKennedyBose

Re: Sending text as popup message

cr9714-Apr-03 4:07

cr97

14-Apr-03 4:07

I don't know special api-calls for this ...
but maybe you can use the Windows command "net send" ???

(translated from a german windows ...)

NET SEND {Name|*|/DOMAIN[:Name]|/USERS} Message<br />

Example:

NET SEND ThomasBoseKenn "Do you need further help ?"

cr97

Re: Sending text as popup message

Mr Bose Dayala14-Apr-03 18:01

Mr Bose Dayala

14-Apr-03 18:01

thanx...but it should be done through programatically...slect an user name from the dropdown box which displays all the users in one domain,when we click on "Send" button ,string in the edit box should be sent to that user just like a winpopup message(just like NET SEND cr97 "Ya..I need your help?" command works)....

BR
Thomas

ThomasKennedyBose

Re: Sending text as popup message

cr9714-Apr-03 22:24

cr97

14-Apr-03 22:24

And why don't you make a dialog, where the you can select the text and the user ???

And after pressing "SEND" you concatenate all the strings like

<br />
strCall = "NET SEND "+strUserName+" \""+strMessage+"\"";<br />

then you can execute "strCall" ...

is it a solution for you ?

cr97

P.S. Sprichst du deutsch ?

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