C / C++ / MFC Discussion Boards

Re: set the parameter of CRichEditCtrl ::SetWindowText()

Michael Schubert11-Jun-09 6:12

11-Jun-09 6:12

If you have a CString member variable you could use UpdateData(FALSE). Some people say UpdateData() should not be used but it always worked for me.

Re: set the parameter of CRichEditCtrl ::SetWindowText()

MrKBA11-Jun-09 6:40

MrKBA

11-Jun-09 6:40

ok it work but it display a part only of the string and not the all.so what can i do?

Re: set the parameter of CRichEditCtrl ::SetWindowText()

Michael Schubert11-Jun-09 20:50

Michael Schubert

11-Jun-09 20:50

khaliloenit wrote:
part only of the string

You'll have to be a bit more specific. It might have to do with the "LineScroll" function you are using or maybe the styles of your control are not correct (ES_MULTILINE comes to mind).

can you find the problem??

August Brower11-Jun-09 5:10

August Brower

11-Jun-09 5:10

I am creating a program for a children's ATM for the local kids museum, and I'm having problems sending data to the machine (over RS232). I am using a .dll supplied by the manufacturer that is used to interface the dispenser with a computer. I think the problem is in sending the hex characters to the machine. I open the port fine (according to the generated log file), but then I send and don't recieve the ACK. I'm pretty sure that it is just not sending for some reason. here is the pertinent part of the code. thanks for any help

#include "stdafx.h"
#include

typedef struct
{
unsigned int uiPort; //communication port
unsigned char ucDataBits; //Data bit
unsigned char ucParity; //Parity bit
unsigned char ucStopBits; //Stop bit
unsigned long dwBaudRate; //Baud Rate
HWND hwnd; //Parent window handle
unsigned char ucCommandType; //command type(1: ezCDM-1000 )
}SETINFO;

typedef unsigned int (*EZLINKOPEN)(SETINFO* setInfo);
typedef unsigned int (*EZLINKCLOSE)(void);
typedef unsigned int (*EZLINKPATH)(PCHAR pcMessage);
typedef unsigned int (*EZLINKSEND)(DWORD dwCmdExcuteTime, PUCHAR pcMessage, UINT uiCmdSize);
typedef unsigned int (*EZLINKRCV)(PUCHAR pcMessage, UINT *piRspSize);

int _tmain(int argc, _TCHAR* argv[])
{
//Loading dll------------------------------------------------------------------------------------------

HINSTANCE hdll = NULL;
hdll = LoadLibrary(TEXT("ezlink")); //load the dll

if (hdll == NULL)
{
printf("Didn't load dll\n"); //tell me if it failed
}

//Mapping the dll's functions--------------------------------------------------------------------------------

EZLINKOPEN ezLinkOpen;
EZLINKCLOSE ezLinkClose;
EZLINKPATH ezLinkPath;
EZLINKSEND ezLinkSend;
EZLINKRCV ezLinkRcv;

ezLinkOpen = (EZLINKOPEN)GetProcAddress(hdll,"ezLinkOpen");
ezLinkClose = (EZLINKCLOSE)GetProcAddress(hdll,"ezLinkClose");
ezLinkPath = (EZLINKPATH)GetProcAddress(hdll,"ezLinkPath");
ezLinkSend = (EZLINKSEND)GetProcAddress(hdll,"ezLinkSend");
ezLinkRcv = (EZLINKRCV)GetProcAddress(hdll,"ezLinkRcv");

//handle the error
if(!ezLinkOpen) //end program if dll mapping fails fails
{
FreeLibrary(hdll);
printf("Failed to map open function!\n");
return -1;
}

else //otherwise, lets send some commands
{
unsigned int result;

//Setting the log path--------------------------------------------------------------------------------------------
char message[] = "C:\\Documents and Settings\\august brower\\My Documents\\Visual Studio 2008\\Projects\\cash machine";
result = ezLinkPath((PCHAR) &message);
printf("Result of Path: '%i'\n", result);

//Opening the port---------------------------------------------------------------------------------------------------
SETINFO pSetInfo;

pSetInfo.uiPort =3;
pSetInfo.ucDataBits = 8;
pSetInfo.ucParity = 2;
pSetInfo.ucStopBits = 0;
pSetInfo.dwBaudRate = 9600;
pSetInfo.hwnd = GetActiveWindow();
pSetInfo.ucCommandType = 1;

result = ezLinkOpen(&pSetInfo);
printf("Result of Open: '%i'\n", result);

unsigned char response[20] ;

UINT *rspSize;
rspSize = (PUINT)malloc(sizeof(UINT));

//Sending commands
unsigned char command[6] = {0x01,0x30,0x02,0x50,0x03,0x60};
unsigned char command9[1] = {0x06};
unsigned char command1[12] = {0x01,0x30,0x02,0x4B,0x42,0x32,0x42,0x32,0x42,0x32,0x03,0x0B};
unsigned char command2[7] = {0x01,0x30,0x02,0x42,0x21,0x03,0x53};

PUCHAR cassette; //check cassette
PUCHAR ack; //acknowledge
PUCHAR bill; //set bill dimensions
PUCHAR dispense; //dispense 1 bill

cassette = command;
ack = command9;
bill= command1;
dispense=command2;

//--get cassette info-------------------------------------------------
result = ezLinkSend(4000,cassette;message,6);
printf("Result of Send: '%i'\n", result);

result = ezLinkRcv(response,rspSize);
printf("Result of Receive: '%i'\n", result);

result = ezLinkRcv(response,rspSize);
printf("Result of Receive: '%i'\n", result);

result = ezLinkSend(4000,ack,1);
printf("Result of Send: '%i'\n", result);

Re: can you find the problem??

CPallini11-Jun-09 6:58

CPallini

11-Jun-09 6:58

August Brower wrote:
result = ezLinkSend(4000,cassette;message,6);

What is this (it looks pretty ugly, with that semicolon...)?

You know, without knowing proper command format (probably you've some documentation about) we can give little help to you.

BTW: please use <pre> tags (or code block button) to enclose code snippets.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: can you find the problem??

chirag_chauhan11-Jun-09 19:08

chirag_chauhan

11-Jun-09 19:08

By looking at following code statements,

unsigned char response[20] ;

UINT *rspSize;
rspSize = (PUINT)malloc(sizeof(UINT));

result = ezLinkRcv(response,rspSize);

it seems like problem with rspSize, rspSize doesn't match with response memory allocatin i.e. 20. I suggest you to try out giving hard-coded 20 instead of rspSize to know exact problem and then after implement generalized logic.

How to debug a DLL () running on the remote server using Visual studio 2005

ptr_Electron11-Jun-09 3:15

ptr_Electron

11-Jun-09 3:15

How to debug a DLL () running on the remote server using Visual studio 2005

Re: How to debug a DLL () running on the remote server using Visual studio 2005

led mike11-Jun-09 4:32

led mike

11-Jun-09 4:32

see if this helps[^]

Re: How to debug a DLL () running on the remote server using Visual studio 2005

chirag_chauhan11-Jun-09 19:16

chirag_chauhan

11-Jun-09 19:16

Here are some of the steps that mey helps you,

> Run msvsmon.exe located under "Program Files\Microsoft Visual Studio 8\Common7\IDE\Remote Debugger\x86" on the remote machine where EXE is running.
> Then change the Tools->Options in msvsmon.exe according to your requirements.
> On machine where VS2005 is running, Debug->Attach to Process: Transport-Remote, Qualifier-machine-name:port. Click on Refresh, that will give you list of processes running on remote machine.

Hope this helps.

Re: How to debug a DLL () running on the remote server using Visual studio 2005

ptr_Electron11-Jun-09 22:35

ptr_Electron

11-Jun-09 22:35

On my server visual studio 8 is not installed, It was installed only on my development machine,

how can I go ahead

Re: How to debug a DLL () running on the remote server using Visual studio 2005

chirag_chauhan11-Jun-09 23:14

chirag_chauhan

11-Jun-09 23:14

Just copy x86 folder on u r server.

Quitting an application

Gagnon Claude11-Jun-09 2:18

Gagnon Claude

11-Jun-09 2:18

Hi,

I want to know, in a Doc/View MFC application, where is the place to map a message to quitting an application by the File menu and by the X button at the top right of a window ?

Thanks.

Claude

Re: Quitting an application

Rajesh R Subramanian11-Jun-09 2:54

Rajesh R Subramanian

11-Jun-09 2:54

Hi,

WM_CLOSE would be posted when the X button is clicked or file->exit is chosen. If you can explain your what you're trying to achieve, someone may suggest a better way out.

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Quitting an application

chirag_chauhan11-Jun-09 19:27

chirag_chauhan

11-Jun-09 19:27

You can also use WM_SYSCOMMAND/SC_CLOSE.

Re: Quitting an application

Rajesh R Subramanian11-Jun-09 21:32

Rajesh R Subramanian

11-Jun-09 21:32

Please reply to the person who asked the query.

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Quitting an application

chirag_chauhan11-Jun-09 23:20

chirag_chauhan

11-Jun-09 23:20

K, will take care about it

save bmp in grayscale formt

Member 604218211-Jun-09 2:07

Member 6042182

11-Jun-09 2:07

Hi,
I want to convert a 24 bpp image into 8 bit GRAYSCALE image. I have attached the following code snippet to do this .It is not working.

BITMAPINFOHEADER bmpInfoHeader;
BITMAPFILEHEADER bmpFileHeader;
unsigned int extrabytes, bytesize;
RGBQUAD palette[256];
unsigned int numPaletteEntries = 256;

// Fill the bitmap file header structure
bmpFileHeader.bfType = 'MB'; // Bitmap header
bmpFileHeader.bfSize = 0; // This can be 0 for BI_RGB bitmaps
bmpFileHeader.bfReserved1 = 0;
bmpFileHeader.bfReserved2 = 0;
bmpFileHeader.bfOffBits = 0;//sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * numPaletteEntries;

extrabytes = (4 - 320 % 4) % 4;

// This is the size of the padded bitmap
bytesize = (320 + extrabytes) * 435;

// Fill the bitmap info structure
bmpInfoHeader.biSize = sizeof(BITMAPINFOHEADER);
bmpInfoHeader.biWidth = 320;
bmpInfoHeader.biHeight = 435;
bmpInfoHeader.biPlanes = 1;
bmpInfoHeader.biBitCount = 8; // 8 - bit bitmap
bmpInfoHeader.biCompression = BI_RGB;
bmpInfoHeader.biSizeImage = bytesize; // includes padding for 4 byte alignment
bmpInfoHeader.biXPelsPerMeter = 0;
bmpInfoHeader.biYPelsPerMeter = 0;
bmpInfoHeader.biClrUsed = numPaletteEntries;
bmpInfoHeader.biClrImportant = 0;

ByteArray = new BYTE[bmpInfoHeader.biSizeImage];

while(j < bmpInfoHeader.biSizeImage)
{
if(j < bmpInfoHeader.biSizeImage/2)
ByteArray[j] = 255;
else
ByteArray[j] = 0;

j++;
}

//Write the bitmap file header
UINT nWrittenFileHeaderSize = fwrite(&bmpFileHeader, 1,
sizeof(BITMAPFILEHEADER), pFile);
//And then the bitmap info header
UINT nWrittenInfoHeaderSize = fwrite(&bmpInfoHeader,
1, sizeof(BITMAPINFOHEADER), pFile);
//Finally, write the image data itself
fwrite(ByteArray, 1, bmpInfoHeader.biSizeImage, pFile);

Can u pls. help.

Re: save bmp in grayscale formt

CPallini11-Jun-09 3:27

CPallini

11-Jun-09 3:27

Member 6042182 wrote:
while(j < bmpInfoHeader.biSizeImage)
{
if(j < bmpInfoHeader.biSizeImage/2)
ByteArray[j] = 255;
else
ByteArray[j] = 0;

j++;
}

What are you doing here?
Smile | :)

Re: save bmp in grayscale formt

Member 604218217-Jun-09 23:24

Member 6042182

17-Jun-09 23:24

Here ByteArray is an array of image data.I am not sure if BITMAPINFOHEADER and BITMAPFILEHEADER variables are correctly filled.I was trying to put some arbit data on that file.Will you tell me if the BITMAPINFOHEADER and BITMAPFILEHEADER variables are correctly filled?

int i=0,j=0;
while(j < bmpInfoHeader.biSizeImage)
{
ByteArray[j] = GrayData(m_pDrawingSurfaceBits[i++], 0.3;
ByteArray[j] = ByteArray[j] + GrayData(m_pDrawingSurfaceBits[i++], 0.59;
ByteArray[j] = ByteArray[j] + GrayData(m_pDrawingSurfaceBits[i++], 0.11);
j++;
}

m_pDrawingSurfaceBits is a pointer to data elements.
Where I have got m_pDrawingSurfaceBits from the following
CreateDIBSection(pDC->GetSafeHdc(), (CONST BITMAPINFO*)&BMIH, DIB_RGB_COLORS, (void**)&m_pDrawingSurfaceBits, NULL, 0);

GrayData is defined in following format.
BYTE CLoadBitmapDlg::GrayData(BYTE b, float Multiply)
{
float a;
a =(float) b;
a = a * Multiply;
b =(BYTE)a;
return b;
}
Is there any code to convert any bmp file to another bmp,in 8 bit grayscale format?

Re: save bmp in grayscale formt

C^hris L^osinger11-Jun-09 4:00

C^hris L^osinger

11-Jun-09 4:00

you need to write the pallete, too.

image processing toolkits | batch image processing

module name

ali kanju11-Jun-09 1:17

ali kanju

11-Jun-09 1:17

how can i give name to my exe module.

Re: module name