C / C++ / MFC

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow

#include <afxpriv.h> // Required for CDialogTemplate
int CMyDlg::DoModal()
{
	CDialogTemplate dlt;

	// Load dialog Template
	if (!dlt.Load(MAKEINTRESOURCE(CMyDlg::IDD)))
	{
		return -1;
	}

	// Set Font Size;
	// Default Value
	WORD nFontSize = 10;
	TCHAR chFaceName[100] = "Courier New";

	// Open an ini file or read from the registry to get the new font size and face name
	if (GetNewFontSize(....))
	{
		nFontSize = newsize;
	}
	
	if (GetNewFaceName(....))
	{
		lstrcpy(chFaceName, newfacename);
	}
	
	dlt.SetFont(chFaceName, (WORD)nFontSize);

	// Get pointer to the modified dialog template
	LPSTR pData = (LPSTR)GlobalLock(dlt.m_hTemplate);
	if (pData == NULL)
	{
		return -1;
	}

	// Let MFC know that you are using your own template
	m_lpszTemplateName = NULL;
	InitModalIndirect(pData);

	// Display Dialog Box
	INT nResult = CDialog::DoModal();

	// Unlock memory object
	GlobalUnlock(dlt.m_hTemplate);
	return nResult;
}

"Opinions are neither right nor wrong. I cannot change your opinion of me. I can, however, change what influences your opinion." - David Crow

void (*functions[])() = { cmd0, cmd1, cmd2, cmd3 }; // cmd0 etc. are the function names
...
char string[3] = "48";     // The 2-character string you read from the serial port
int number = atoi(string); // Convert to an integer
if (number >= 0 && number <= 3) // sanity check
{
  (*functions[number])();
}