C / C++ / MFC Discussion Boards

Re: Button Bitmap

Joaquín M López Muñoz18-Oct-02 2:17

Joaquín M López Muñoz

18-Oct-02 2:17

I guess the problem lies in the CRect(0, 0, 0, 0) part.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Button Bitmap

Ruca18-Oct-02 2:47

Ruca

18-Oct-02 2:47

Hi Joaquín,
thanks for the try, but the following works:

CButton * button = new CButton;
button->Create(_T("SMS"), WS_CHILD | WS_VISIBLE | BS_FLAT | BS_ICON, CRect(0, 0, 0, 0), &m_wndStatusBar, IDC_BUTTON_STATUS_BAR);
button->SetIcon( AfxGetApp()->LoadIcon( IDI_ICON1 ) );

I cannot understand why, this works and not the previous code. Why must I use AfxGetApp to LoadIcon() and not just LoadIcon()?

Any answers?

Rui

Re: Button Bitmap

Ed Gadziemski18-Oct-02 4:32

Ed Gadziemski

18-Oct-02 4:32

Because you need an instance handle in order to find and load the icon. The NULL value you supplied as the first parameter to ::LoadIcon and ::LoadBitmap was insufficient.

Re: Button Bitmap

Ruca18-Oct-02 5:37

Ruca

18-Oct-02 5:37

Thanks for the explanation.

How do I get the hinst?

Cheers

Rui

Re: Button Bitmap

Ruca21-Oct-02 1:31

Ruca

21-Oct-02 1:31

OK, I understand that, what is bothering me is, after reading the MSDN documentation, I don't understand how to get the "Handle to an instance of the module whose executable file contains the icon to be loaded"?

Thanks for your time and excuse my ignorance.

Cheers

Rui

Re: Button Bitmap

Ed Gadziemski21-Oct-02 6:58

Ed Gadziemski

21-Oct-02 6:58

The hInstance parameter is passed by Windows to WinMain when an application is started. Use AfxGetInstanceHandle() to get it. If that does not answer you, I don't understand your question. Try rephrasing it and posting again and perhaps someone can help.

Ccomvariant to C-style

suresh_sathya18-Oct-02 1:20

suresh_sathya

18-Oct-02 1:20

CComVariant var("Somevalue");
How to convert this to C-style string

Re: Ccomvariant to C-style

C^hris L^osinger18-Oct-02 3:36

C^hris L^osinger

18-Oct-02 3:36

http://www.codeproject.com/string/CPPStringGuide2.asp[^]

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Smaller Animals Software

MFCGridCtrl

munafmohd18-Oct-02 0:53

munafmohd

18-Oct-02 0:53

Hi Iam using the GridCtrl in my code.The Grid is allowing to enter infinite number of charecters in the cells.I want to restrict the cell characters by some 12 or 13.That is user should not enter more than 12 charecters in a cell.
Please help me.

munafmohamed

Re: MFCGridCtrl

Iain Clarke, Warrior Programmer18-Oct-02 6:40

Iain Clarke, Warrior Programmer

18-Oct-02 6:40

This is from memory, so you'll have to check on the implementation details.
When a cell is being edited, it created an "InPlaceEdit" control. This is an
edit box which is subclassed to capture the WM_KILLFOCUS message.

When this is created, the grid control sends you a notification. You can get
the handle / CWnd * of the edit box and send it a EM_LIMITTEXT message.

I hope this helps,

Iain.

Scintilla and lex/yacc/flex/bison

Patje18-Oct-02 0:48

Patje

18-Oct-02 0:48

I'm currently trying to use the Scintilla (www.scintilla.org[^]) control in one of our applications. That's rather simple and works.
Problem is that I want to add a colorizer (for our macro language) to Scintilla. It seems like I have to write my own lexer module specifically for Scintilla, which is a pitty since I already have a lexical analyser written in lex/flex, that works together with our parser, written in yacc/bison.
I would like to reuse our lex/flex lexical analyser in the Scintilla lexer.
Anybody done that already ? Or anyone ideas ?
Thanks.

Enjoy life, this is not a rehearsal !!!

Getting application ICON from process

alex.barylski18-Oct-02 0:06

alex.barylski

18-Oct-02 0:06

Is this possible...?

Spy++ has a neat feature where you drag the bullseye over a window and it returns it's info like class info and process ID and thread and such...

I assume I can get the process ID using GetWindowThreadProcessID(), but once I have a window or application process how can I get the module's ICON...???

Thanx in advance!

Cheers!

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: Getting application ICON from process

alex.barylski18-Oct-02 0:20

alex.barylski

18-Oct-02 0:20

hIcon of the WNDCLASS....?

that would work yeah...?

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: Getting application ICON from process

Dominik Reichl18-Oct-02 2:44

Dominik Reichl

18-Oct-02 2:44

Have a look at the function

HICON ExtractIcon(
  HINSTANCE hInst,          // instance handle
  LPCTSTR lpszExeFileName,  // filename of file with icon
  UINT nIconIndex           // index of icon to extract
);

hInst should be AfxGetInstanceHandle(); and lpszExeFileName the path to the executable of the process you want to get the icon from. There is a member "szExeFile" in the PROCESSENTRY32 struct, so this should not be a problem. To get the standard icon, set nIconIndex = 0.

Big Grin | :-D

-Dominik

How figure out shared folder accessing?

David M.17-Oct-02 23:52

David M.

17-Oct-02 23:52

How can I programmatically figure out that my shared folders are accessed from some user? Is there any event which can trigger me that, and how?
Thank you in advance.

command line

udayGovekar17-Oct-02 23:45

udayGovekar

17-Oct-02 23:45

Hi All,

consider Test.exe which is GUI based,

now in command line

\\directory\test.exe it invokes Test.exe, if user types

\\directory\test.exe help ,particular help should be displayed simillar to c:\help a list of commands with description is displayed

can anyone explain me on how to do this

Thanks
Uday

Re: command line

alex.barylski18-Oct-02 0:11

alex.barylski

18-Oct-02 0:11

Parse the command line parameter of WinMain(), determine if the commandline included help, then print the stuff to screen.

console apps I guess use main() so you have to work with argv and argc

argv is an array (if i remember correctly) of each paramter and argc is a count of the number of array elements...

so argv[0] = test.exe (module name)
and argv[1] would contain the text string help

simple as that really

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: command line

udayGovekar18-Oct-02 0:23

udayGovekar

18-Oct-02 0:23

I need to use WriteConsole for that I have to get the Handle
(Handle to the console screen buffer to be written to. The handle must have GENERIC_WRITE access. )

How to get this Handle??

I used ,
HANDLE hnd =GetStdHandle(STD_OUTPUT_HANDLE); buts its not working and also I used GetLastError() its returning 0 which means program executed correctly

So ??

Re: command line

Dominik Reichl18-Oct-02 2:36

Dominik Reichl

18-Oct-02 2:36

Are you using WinMain(...) or main(...). If you use WinMain, you have to call the function

AllocConsole();

before calling GetStdHandle(...);

Big Grin | :-D

-Dominik

redefination

stevenson17-Oct-02 23:30

stevenson

17-Oct-02 23:30

Hi,

In DataTypes.h, I wrote this

typedef struct _DATASTRUCT
      {
         LPCTSTR ID;
         double  value;
         SYSTEMTIME time;
       }DATASTRUCT,*LPDATASTRUT;

and include this header in several classes *.h or *.cpp files,the compiler hint to me that redefination has happened.

Then how to fix this problem?

Extreme programming. Do the No.1

Re: redefination

Daniel Turini17-Oct-02 23:45

Daniel Turini

17-Oct-02 23:45

Put a

#pragma once

In your .h first line

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Re: redefination

Joaquín M López Muñoz17-Oct-02 23:48

Joaquín M López Muñoz

17-Oct-02 23:48

Are you protecting your file .h>/code> against multiple inclusion? (with <code>#ifndef DATA_TYPE_Hs and stuff, you know.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: redefination

Alexandru Savescu17-Oct-02 23:50

Alexandru Savescu

17-Oct-02 23:50

In data types.h add something like this:

#if !defined DATATYPES
#define DATATYPES
.... // declarations go here
#end if 

Best regards,
Alexandru Savescu

Storage Card

tem tem17-Oct-02 23:09

tem tem

17-Oct-02 23:09

Hii all ,

how I can get Information about the space available and the total space in the memory of a Pocket PC or Its aditional card !!

thanks alot

System font..

Neha17-Oct-02 23:05

Neha

17-Oct-02 23:05

How to retreive the system font?

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