vncmultimonitor.cpp

teamviewer source code vc++

// System headers
#include "stdhdrs.h"

// Custom headers
#include "VNCHooks\VNCHooks.h"
#include "vncServer.h"
#include "vncKeymap.h"
#include "vncDesktop.h"
#include "vncService.h"
// Modif rdv@2002 - v1.1.x - videodriver
#include "vncOSVersion.h"
#include "TextChat.h" // sf@2002
#include "vncdesktopthread.h"

void 
vncDesktop::Checkmonitors()
{
	DEVMODE devMode;

	memset(mymonitor, 0, sizeof(mymonitor));
	nr_monitors = GetNrMonitors();
	if (nr_monitors>0)
	{
		memset(&devMode, 0, sizeof(DEVMODE));
		devMode.dmSize = sizeof(DEVMODE);
		// get primary device
		if(GetDevice(true, 0))		
			EnumDisplaySettings(mymonitor[0].device, ENUM_CURRENT_SETTINGS, &devMode);
		else
			EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &devMode);
		mymonitor[0].offsetx=devMode.dmPosition.x;
		mymonitor[0].offsety=devMode.dmPosition.y;
		mymonitor[0].Width=devMode.dmPelsWidth;
		mymonitor[0].Height=devMode.dmPelsHeight;
		mymonitor[0].Depth=devMode.dmBitsPerPel;
	}
	if (nr_monitors>1)
	{
		if(!GetDevice(false, 1))	// get secondary device
		{
			nr_monitors = 1;
			return;
		}
		memset(&devMode, 0, sizeof(DEVMODE));
		devMode.dmSize = sizeof(DEVMODE);
		EnumDisplaySettings(mymonitor[1].device, ENUM_CURRENT_SETTINGS, &devMode);
		mymonitor[1].offsetx=devMode.dmPosition.x;
		mymonitor[1].offsety=devMode.dmPosition.y;
		mymonitor[1].Width=devMode.dmPelsWidth;
		mymonitor[1].Height=devMode.dmPelsHeight;
		mymonitor[1].Depth=devMode.dmBitsPerPel;
	}

	mymonitor[2].offsetx=GetSystemMetrics(SM_XVIRTUALSCREEN);
	mymonitor[2].offsety=GetSystemMetrics(SM_YVIRTUALSCREEN);
	mymonitor[2].Width=GetSystemMetrics(SM_CXVIRTUALSCREEN);
	mymonitor[2].Height=GetSystemMetrics(SM_CYVIRTUALSCREEN);
	mymonitor[2].Depth=mymonitor[0].Depth;//depth primary monitor is used
}



int
vncDesktop::GetNrMonitors()
{
	if(OSVersion()==OSVERSION_NT || OSVersion()==OSVERSION_95)
		return 1;
	pEnumDisplayDevices pd = (pEnumDisplayDevices)GetProcAddress(LoadLibrary("USER32"), "EnumDisplayDevicesA");
    if (pd)
    {
	    int j=0;
        DISPLAY_DEVICE dd;
        ZeroMemory(&dd, sizeof(dd));
        dd.cb = sizeof(dd);
        for (int i=0; (pd)(NULL, i, &dd, 0); i++)
		{
			if (dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP &&
			  !(dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER))
			{
				j++;
			}
		}
		return j;
	}
	else
	{
		vnclog.Print(LL_INTERR, "EnumDisplayDevicesA not found");
		return 1;
	}
}

bool vncDesktop::GetDevice(bool primary, int index)
{
	if(OSVersion()==OSVERSION_NT || OSVersion()==OSVERSION_95)
		return false;

	pEnumDisplayDevices pd;
    pd = (pEnumDisplayDevices)GetProcAddress( LoadLibrary("USER32"), "EnumDisplayDevicesA");

    if (pd)
    {
        DISPLAY_DEVICE dd;
        ZeroMemory(&dd, sizeof(dd));
        dd.cb = sizeof(dd);
        for (int i=0; (pd)(NULL, i, &dd, 0); i++)
		{
			if( dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP &&
			    !(dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER) &&
			    ( (primary && (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)) ||
			      (!primary && !(dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE))
				))
			{
				strcpy(mymonitor[index].device,(char *)dd.DeviceName);
			}
		}
		return true;
	}
	else
		return false;
}