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OriginalGriff wrote:

you only do once...

Quote:

search for window handle

#include "pch.h"
#include <iostream>
#include <stdio.h>
#include <cstdlib>
#include <windows.h>
#include <winuser.h>
#include <conio.h>

int main(int argc, char *argv[])
{
	LPCTSTR windowName = "Pregunta";
	int ims = 10000;

	if (argc > 1)	windowName = argv[1];
	if (argc > 2)	ims = atoi(argv[2]);

	while (true)
	{
		HWND hHandle = ::FindWindow(NULL, windowName);
		std::cout << hHandle;
		std::cout << "\r\n";

		if (hHandle != NULL)
		{
			::PostMessage(hHandle, WM_KEYDOWN, VK_RETURN, 0x001C0001);
			::PostMessage(hHandle, WM_KEYDOWN, VK_DOWN, 0x00500001);
		}
		Sleep(ims);
	}
}

HWND xWnd= FindWindow(NULL, "DlgWnd");
if (xWnd)
{
   int xWatchDogCount= 0;
   while(xWatchDogCount++ < 10) // Prevent from do forever
   {
      HWND xOkBtnWnd = FindWindowEx(xWnd, NULL, NULL, "OK");
      if (xOkBtnWnd)
      {
         PostMessage(xOkBtnWnd, WM_KEYDOWN, VK_SPACE, 0);
         PostMessage(xOkBtnWnd, WM_KEYUP, VK_SPACE, 0);
      }
   }
}

Joan M wrote:

The problem is that what is output from my Visual Studio is not compatible anymore with windows xp...

1. Open the Visual Studio Installer
2. Click "Modify"
3. Select the "Individual Components" tab
4. Scroll down, and select the "Windows XP support for C++" option