C / C++ / MFC

nmx_de wrote:

Can anybody give me a hint please?

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

<br />
#include "stdafx.h"<br />
#include <windows.h><br />
<br />
char* cmd(char *cmd);<br />
<br />
int main()<br />
{<br />
    char* output = cmd("ipconfig.exe");<br />
    MessageBox(0,output,"Test",0);<br />
    return 0;<br />
}<br />
<br />
char* cmd(char *cmd)<br />
{<br />
    HANDLE readHandle;<br />
    HANDLE writeHandle;<br />
    HANDLE stdHandle;<br />
    DWORD bytesRead;<br />
    char maxbuffer[1024];<br />
<br />
    static char output[50000];<br />
    SECURITY_ATTRIBUTES sa;<br />
    PROCESS_INFORMATION pi;<br />
    STARTUPINFO si;<br />
   <br />
    ZeroMemory(&sa,sizeof(SECURITY_ATTRIBUTES));<br />
    ZeroMemory(&pi,sizeof(PROCESS_INFORMATION));<br />
    ZeroMemory(&si,sizeof(STARTUPINFO));<br />
<br />
    ZeroMemory(maxbuffer, 1024);<br />
<br />
    sa.bInheritHandle = true;<br />
    sa.lpSecurityDescriptor = NULL;<br />
    sa.nLength = sizeof(SECURITY_ATTRIBUTES);<br />
    si.cb = sizeof(STARTUPINFO);<br />
    si.dwFlags = STARTF_USESHOWWINDOW;<br />
    si.wShowWindow=SW_HIDE;<br />
<br />
    if (!CreatePipe(&readHandle,&writeHandle,&sa,NULL))<br />
       return "Error";<br />
    <br />
    stdHandle=GetStdHandle(STD_OUTPUT_HANDLE);<br />
<br />
    if (!SetStdHandle(STD_OUTPUT_HANDLE,writeHandle))<br />
       return "Error";<br />
    if (!CreateProcess(NULL,cmd,NULL,NULL,TRUE,0,NULL,NULL,&si,&pi))<br />
        return "Error";<br />
    if (!ReadFile(readHandle,output,1023,&bytesRead,NULL))<br />
        return "Error";<br />
        <br />
    output[bytesRead]='\0';<br />
<br />
    if (!SetStdHandle(STD_OUTPUT_HANDLE,stdHandle))<br />
        return "Error: SetStdHandle(stdHandle) failed";<br />
    if (!CloseHandle(readHandle))<br />
        return "Error: CloseHandle(stdHandle) failed";<br />
    if (!CloseHandle(writeHandle))<br />
        return "Error: CloseHandle(stdHandle) failed";<br />
<br />
    return output;<br />
}<br />

wrote:

I am trying to write on a label.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

<br />
void CAnswer::OnPaint()<br />
{<br />
	CPaintDC dc(this);<br />
<br />
dc.SetBkMode(0);<br />
dc.TextOut(50,42,"aaaa",30);<br />
}<br />

Tnarol wrote:

I'd like to launch my program just like double clicking on "log.txt" would do (without a command prompt would be great). Is it possible ?

Tnarol wrote:

Is it possible ?

_AnShUmAn_ wrote:

And you suggested this the other day!!!

#define CHECK(expr) { if((expr) != S_OK) throw MyException; };

try
{
    CHECK(CoCreateInstance(...));
    . . .
}
catch( const MyException & ex)
{
   // exception occured
}