C / C++ / MFC

Maximilien wrote:

When application B is created, A looses focus and I need to have A reclaim the focus.

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Moak wrote:

SW_SHOWNOACTIVATE

void CMainFrame::OnOpensubOpen()
{
	PROCESS_INFORMATION pi;
	ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
	STARTUPINFO si;
	CString cCommandLine=_T("C:\\Users\\me\\Documents\\B\\Debug\\B.exe");

	ZeroMemory( &si, sizeof( STARTUPINFO ) );
	si.cb = sizeof( STARTUPINFO );
	si.dwFlags = STARTF_USESHOWWINDOW;
	si.wShowWindow = SW_SHOWNOACTIVATE;

	if( CreateProcess( NULL, cCommandLine.GetBuffer(), NULL, NULL, FALSE,  NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi ) )
	{
		WaitForInputIdle (pi.hProcess, INFINITE);
	}
}

DWORD foregroundProcessId = GetWindowThreadProcessId(::GetForegroundWindow(), NULL);
DWORD curThreadId = GetCurrentThreadId();

AttachThreadInput(foregroundProcessId, curThreadId, TRUE);

// do one or more of the following

ShowWindow(hWnd, SW_SHOW);
BringWindowToTop(hWnd);
SetActiveWindow(hWnd);
SetForegroundWindow(hWnd);
SetFocus(hWnd);

AttachThreadInput(foregroundProcessId, curThreadId, FALSE);

void CDragSheetView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default

	m_point = point;
	m_bMouseCapture = TRUE;
	SetCursor(AfxGetApp()->LoadCursor(IDC_CURSOR_HANDMOVE));
	SetCapture();

	CScrollView::OnLButtonDown(nFlags, point);
}

void CDragSheetView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default

	if(m_bMouseCapture)
	{
		CPoint ptScroll = GetScrollPosition();
		if(m_point.x < point.x)ptScroll.x -= (point.x - m_point.x);
		if(m_point.x > point.x)ptScroll.x += (m_point.x - point.x);
		if(m_point.y < point.y)ptScroll.y -= (point.y - m_point.y);
		if(m_point.y > point.y)ptScroll.y += (m_point.y - point.y);
		ScrollToPosition(ptScroll);
		m_point = point;
	}

	CScrollView::OnMouseMove(nFlags, point);
}