Problem CRichEditCtrl and scroll-messages - C / C++ / MFC Discussion Boards

gunnar662-Nov-04 23:07

2-Nov-04 23:07

Hi

I wan't to run my exe program and pass some arguments with the exe file. example:
MyProgram.exe "nr1,nr2,nr3,nr4,nr5"

This is some of the code:

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
char *token;
char seps[] = ",";
token = strtok( lpCmdLine, seps );

This works ok in Visual C++, but i would like to do this in Emededd C++. There i get an error: error C2664: 'strtok' : cannot convert parameter 1 from 'unsigned short *' to 'char *'

How can I do this right?

Thanks!

Re: strtok, Find the next token in a string

GDavy3-Nov-04 0:02

GDavy

3-Nov-04 0:02

try casting your lpCmdLine var to char*
strtok( (char*)lpCmdLine, seps );

It seems strange, cuz LPSTR is an ANSI string...

Hope this helps you,
Davy

Re: strtok, Find the next token in a string

Anonymous3-Nov-04 0:28

Anonymous

3-Nov-04 0:28

This works ok

Thanks

Re: strtok, Find the next token in a string

jan larsen3-Nov-04 0:52

jan larsen

3-Nov-04 0:52

GDavy wrote:
It seems strange, cuz LPSTR is an ANSI string...

Not if you are compiling for unicode, then LPSTR is unsigned short *.

"After all it's just text at the end of the day. - Colin Davies

"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus

Re: strtok, Find the next token in a string

GDavy3-Nov-04 0:59

GDavy

3-Nov-04 0:59

Nono,
LPTSTR is a Unicode format (wide char) in UNICODE and ANSI when not compiling for UNICODE
LPSTR is always ANSI string (8bit)
LPWSTR is always wide char string(16 bit)

But I used to be confused by these too..

Greetz,
Davy

Re: strtok, Find the next token in a string

jan larsen3-Nov-04 1:21

jan larsen

3-Nov-04 1:21

You're so right.
But regardless, it seems that something makes his compiler believe that LPSTR is defined as unsigned short *.

"After all it's just text at the end of the day. - Colin Davies

"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus

Re: strtok, Find the next token in a string

jan larsen3-Nov-04 0:50

jan larsen

3-Nov-04 0:50

gunnar66 wrote:
error C2664: 'strtok' : cannot convert parameter 1 from 'unsigned short *' to 'char *'

It seems like you've defined UNICODE (or _UNICODE, I can't remember the definition for compiling for unicode precisely). If thats the case, then LPSTR translates to unsigned short * instead of char *.
strtok requires char * parameters, if you intended to use unicode strings, you should use wcstok instead.

[EDIT]A GDavy has corrected me, LPSTR should be defined as CHAR * and CHAR should again be defined as char. But if the code you've given us is the same you're using for your embedded version, then somehow LPSTR must be defined as unsigned short *[/EDIT]

"After all it's just text at the end of the day. - Colin Davies

"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus

Problem CRichEditCtrl and scroll-messages

maty22-Nov-04 22:50

maty2

2-Nov-04 22:50

I have a problem with my class derived from CRichEditCtrl, I gladly text the Scroll event would intercept however it folds unfortunately.

White someone which there wrong I made?

BOOL CREditControl::PreTranslateMessage(MSG* pMsg)
{

switch(pMsg->wParam )
{
case VK_SCROLL:
//Test
AfxMessageBox("VK_SCROLL");
return true;
}

return CRichEditCtrl::PreTranslateMessage(pMsg);
}

thanks, Matthias

Help on Command Line Parameters

WinAPILearner2-Nov-04 21:45

WinAPILearner

2-Nov-04 21:45

Hi,
In a Win32 Application I would like to check if command line parameters
/b /a is provided. The Messagebox show me the parametters like
/b /a but the if condition do not met it alwasy the else statment
that apply.

if ("/b" == szCmdLine || szCmdLine == "/a")
{
MessageBox (NULL, szCmdLine,"met",0);
}
else
{
MessageBox (NULL, szCmdLine,"Not met",0);
}

I did also chcked "//b" == szCmdLine. What I am missing?
Regards.

Re: Help on Command Line Parameters

vcplusplus3-Nov-04 0:18

vcplusplus

3-Nov-04 0:18

if szCmdLine contains other parameters besides /a or /b, you will need to do this.

if (szCmdLine.Find("/b") >= 0 || szCmdLine.Find("/a") >= 0) 
{
    MessageBox (NULL, szCmdLine,"met",0);
}
else
{
    MessageBox (NULL, szCmdLine,"Not met",0);
}

Re: Help on Command Line Parameters

David Crow3-Nov-04 3:31

David Crow

3-Nov-04 3:31

Use Paul DiLascia's CCommandLineInfoEx class for this.

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow

Trouble witn CreateWindow

lillah2-Nov-04 21:30

lillah

2-Nov-04 21:30

Hi,
I've created a win32 app, and it runs perfectly till i've added #include <shellapi.h> for using the systemtray icons.
The trouble is in CreateWindow, now it returns NULL.

I put the include in myapp.cpp and nothing, and I've put it in stdafx.h, neither.
However, if I don't use Shell_NotifyIcon, so I don't need this header, CreateWindow returns a valid value.

What am I doing wrong?

Thanks.

Put focus to App.

V.2-Nov-04 21:24

2-Nov-04 21:24

Hi,

Our app calls an instance of Word. A custom Toolbar in Word contains a button "Back to App", which will close the word instance and, on Win NT, returns to the app. In Xp however this is not the case. The focus is not necessarely set back to our app.

Can anyone give me a hint how to set the input focus from where it came.
I'm searching in the direction of SetActiveWindow/SetForegroundWindow. (correct?)

tnx for your help.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Put focus to App.

Neville Franks2-Nov-04 23:37

Neville Franks

2-Nov-04 23:37

On XP and an application cannot set itself as the active app, however another app can. So using SetForegroundWindow( YourApp ) from Word should work correctly. I had a similar problem to this 3-4 weeks back. Do a search here on SetForegroundWindow() and you will find that thread and the respones I got.

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

Re: Put focus to App.

V.3-Nov-04 0:14

3-Nov-04 0:14

tnx a lot, I'll have a look into it, let's hope I do not have such problems as you had Smile | :)

.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Put focus to App.

Rage3-Nov-04 4:47

Rage

3-Nov-04 4:47

In this article by Nish, there is a chapter How to steal focus on 2k/xp. It is meant for dialog boxes, maybe it can work with your app.

Some handy dialog box tricks, tips and workarounds[^]

Hope this helps

~RaGE();

Asynch Serial Comms

louis2-Nov-04 20:44

louis

2-Nov-04 20:44

Hi there

I am receiving asynch serial data successfully using a thread.
But I noticed that the time the data arrives is never the same. It actually arrives at say time (y), then at Time (y+1), (y+2)... until (y+10). Then it jumps back to time (y). The transmission time is accurate always at 100ms intervals.

Can anyone maybe tell me why this is the case AND what I should look for to correct it. Maybe a setting somewhere.

Thanks

Re: Read from a file?

Rage2-Nov-04 20:22

Rage

2-Nov-04 20:22

Most probably the directory location. Is the file you are reading in the same directory as your app ? Are you loading "myfile.dat" or "L:\Mypath\myfile.dat" ?

When loading manually, the current directory must be your app directory, so it can find the file. Otherwise it is the different programm directory, where your data file is not found.

~RaGE();

Re: Read from a file?

Larsson2-Nov-04 20:25

Larsson

2-Nov-04 20:25

Well the file in in the same dir,
But if I start this program with a diffrent program I don't find the file and if I debug the program I find the file but it don't connect to the network. But if I start the program manoly it works greate.

Re: Read from a file?

Ted Ferenc2-Nov-04 21:41

Ted Ferenc

2-Nov-04 21:41

What are the error codes/messages you get when the file fails to open?

"An expert is a person who has made all the mistakes that can be made in a very narrow field." - Neils Bohr

Re: Read from a file?

David Crow3-Nov-04 3:34

David Crow

3-Nov-04 3:34

You are most likely being plagued by absolute vs. relative paths. To verify, specify an absolute path in the program.

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow

Read from a file?

Larsson2-Nov-04 20:18

Larsson

2-Nov-04 20:18

I have a program that read in a file and if a start the program from a diffrent program it don't work but if I start the program manuly it works! What is the problem?.

split a CString

picasso22-Nov-04 19:46

picasso2

2-Nov-04 19:46

Using VC++6
I am reading a value stored in a text field as follows:
First/Last
Want to change it to (reverse the "/"):
First\Last
and store it back

Any help will be greatly appreciated

Re: split a CString

Rage2-Nov-04 20:18

Rage

2-Nov-04 20:18

CString str="First/Last";
str.Replace("/","\\");

~RaGE();

Re: split a CString

RYU^^2-Nov-04 20:19

RYU^^

2-Nov-04 20:19

If you use MFC CString, you can use CString::Replace().

e.g.
CString strValue("First/Last");
strValue.Replace("/", "\\"); //this will replace "/" with single backslash "\"

Hope this is help Smile | :)

Cheers...

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