Digital Mars - c++ - How the access the HOME END keys in a console application

↑ ↓ ← → Ed Schroder <matador home.nl> writes:

As the title says.....

Under DOS I was used to get access to the HOME / END / DEL / PAGE-
UP etc. keys using the _bios_keybrd(0) function. This function is
not available in a console application.

So how does one get access?

TIA

Ed

Jan 05 2007

↑ ↓ ← → Walter Bright <newshound digitalmars.com> writes:

Ed Schroder wrote:
 As the title says.....
 
 Under DOS I was used to get access to the HOME / END / DEL / PAGE-
 UP etc. keys using the _bios_keybrd(0) function. This function is
 not available in a console application.
 
 So how does one get access?


Download ftp://ftp.digitalmars.com/me.zip, which has example code in it 
to do that.

Jan 05 2007

↑ ↓ ← → Bertel Brander <bertel post4.tele.dk> writes:

Ed Schroder skrev:
 As the title says.....
 
 Under DOS I was used to get access to the HOME / END / DEL / PAGE-
 UP etc. keys using the _bios_keybrd(0) function. This function is
 not available in a console application.


#include <windows.h>
#include <iostream>

HANDLE StdIn = GetStdHandle(STD_INPUT_HANDLE);

WORD GetChar()
{
    DWORD NumEventsRead;
    INPUT_RECORD InputRecord;

    while(1)
    {
       if(!ReadConsoleInput(StdIn, &InputRecord, 1, &NumEventsRead))
          return 0;
       if(InputRecord.EventType & KEY_EVENT && 
InputRecord.Event.KeyEvent.bKeyDown)
       {
          if(InputRecord.Event.KeyEvent.wVirtualKeyCode != VK_CONTROL &&
             InputRecord.Event.KeyEvent.wVirtualKeyCode != VK_MENU  &&
             InputRecord.Event.KeyEvent.wVirtualKeyCode != VK_SHIFT)
          {
             return InputRecord.Event.KeyEvent.wVirtualKeyCode;
          }
       }
    }
}

int main()
{
    std::cout << "Hit Esc to exit" << std::endl;
    WORD Ch;
    while((Ch = GetChar()) != VK_ESCAPE)
    {
       switch(Ch)
       {
       case VK_END:
          std::cout << "End" << std::endl;
          break;
       case VK_HOME:
          std::cout << "Home" << std::endl;
          break;
       }
    }
}

-- 
Just another homepage:
http://damb.dk
But it's mine - Bertel

Jan 05 2007