Minor changes to the readme.

Added support for the ConferenceCam CC3000e Camera.
Some redisgn.

.gitignore

@@ -7,5 +7,6 @@ PTZControl/PTZControl.vcxproj.filters
 PTZControl/PTZControl.vcxproj.user
 PTZControl/PTZControlDEU.docx
 PTZControl/PTZControl.exe
+PTZControl/PTZControl.aps
 *.docx
 *.bak

PTZControl/PTZControl.h

@@ -27,9 +27,6 @@
 #define REG_NORESET		_T("NoReset")
 #define REG_NOGUARD		_T("NoGuard")
 
-#define DEFAULT_DEVICE_NAME_1 _T("PTZ Pro 2")
-#define DEFAULT_DEVICE_NAME_2 _T("Logi Rally")
-
 #define TIMER_FOCUS_CHECK			4711
 #define TIMER_AUTO_REPEAT			4712
 #define TIMER_CLEAR_MEMORY			4713

PTZControl/PTZControlDlg.cpp

@@ -13,6 +13,88 @@
 #endif
 
 //////////////////////////////////////////////////////////////////////////////////////////
+//	Array of supported cameras
+//		Allow the cameras with the following tags in the device name.
+//		This will match all Logitech PRT Pro, PTZ Pro 2 and Rally cameras.
+//		Also the ConferenceCam CC3000e Camera will be detected.
+//		Remember: Just a partial token must match the name.
+static const LPCTSTR g_aCameras[] = 
+{
+	_T("PTZ Pro"),
+	_T("Logi Rally"),
+	_T("ConferenceCam"),
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// We have several layouts for the Buttons
+// 0-1 cameras (dialog will shrink by one column)
+//		E |
+//		S |
+// 2 cameras
+//		S E 
+//		- -
+//		1 2
+// 3 cameras
+//		1 E 
+//		2 S
+//		3 
+
+struct SPosition
+{
+	UINT	nId;					// Id of button 
+	bool	bShow;					// Show or hide
+	int		x, y;					// outside raster, left two columns
+};
+
+struct SLayout
+{
+	int cxDelta;					// Num to shrink / grow the dialog
+	const SPosition* pButtons;		// List of entries terminated with nId==0.
+};
+
+static const SPosition layoutBtns1[]	// 0 or 1 camera (uses only 1 column)
+{
+	IDC_BT_EXIT,		true,  0, 0,	// one columns
+	IDC_BT_SETTINGS,	true,  0, 1,
+	// Invisible
+	IDC_BT_WEBCAM1,		false, 0, 0,
+	IDC_BT_WEBCAM2,		false, 0, 0,
+	IDC_BT_WEBCAM3,		false, 0, 0,
+	0
+};
+
+static const SPosition layoutBtns2[]	// 2 cameras (uses 2 columns)
+{
+	IDC_BT_SETTINGS,	true,	0, 0,	// Top row
+	IDC_BT_EXIT,		true,	1, 0,
+	IDC_BT_WEBCAM1,		true,	0, 2,	// bottom row
+	IDC_BT_WEBCAM2,		true,	1, 2,
+	// Invisible
+	IDC_BT_WEBCAM3,		false,  0, 0,
+	0
+};
+
+static const SPosition layoutBtns3[]	// 3 cameras
+{
+	IDC_BT_EXIT,		true,	1, 0,	// Outer left column
+	IDC_BT_SETTINGS,	true,	1, 1,
+	IDC_BT_WEBCAM1,		true,	0, 0,	// all in one column left (top down)
+	IDC_BT_WEBCAM2,		true,	0, 1,
+	IDC_BT_WEBCAM3,		true,   0, 2,
+	0
+};
+
+const SLayout g_layout[CPTZControlDlg::NUM_MAX_WEBCAMS+1] = 
+{
+	-1,	layoutBtns1,		// 0 or 1 camera (shrink dialog)
+	-1,	layoutBtns1,		// 0 or 1 camera (shrink dialog)
+	0,  layoutBtns2,		// 2 cameras	 (keep size)
+	0,  layoutBtns3,		// 3 cameras	 (keep size)
+};
+
+
+//////////////////////////////////////////////////////////////////////////////////////////
+//	Special new notification 
 
 #define ON_BN_UNPUSHED(id, memberFxn) \
 	ON_CONTROL(BN_UNPUSHED, id, memberFxn)
@@ -221,6 +303,7 @@ void CPTZControlDlg::DoDataExchange(CDataExchange* pDX)
 	DDX_Control(pDX, IDC_BT_SETTINGS, m_btSettings);
 	DDX_Control(pDX, IDC_BT_WEBCAM1, m_btWebCam[0]);
 	DDX_Control(pDX, IDC_BT_WEBCAM2, m_btWebCam[1]);
+	DDX_Control(pDX, IDC_BT_WEBCAM3, m_btWebCam[2]);
 }
 
 BEGIN_MESSAGE_MAP(CPTZControlDlg, CDialogEx)
@@ -233,6 +316,7 @@ BEGIN_MESSAGE_MAP(CPTZControlDlg, CDialogEx)
 	ON_BN_CLICKED(IDC_BT_MEMORY, &CPTZControlDlg::OnBtMemory)
 	ON_COMMAND_EX(IDC_BT_WEBCAM1, &CPTZControlDlg::OnBtWebCam)
 	ON_COMMAND_EX(IDC_BT_WEBCAM2, &CPTZControlDlg::OnBtWebCam)
+	ON_COMMAND_EX(IDC_BT_WEBCAM3, &CPTZControlDlg::OnBtWebCam)
 	ON_COMMAND_EX(IDC_BT_PRESET1, &CPTZControlDlg::OnBtPreset)
 	ON_COMMAND_EX(IDC_BT_PRESET2, &CPTZControlDlg::OnBtPreset)
 	ON_COMMAND_EX(IDC_BT_PRESET3, &CPTZControlDlg::OnBtPreset)
@@ -363,6 +447,9 @@ BOOL CPTZControlDlg::OnInitDialog()
 {
 	__super::OnInitDialog();
 
+	//---------------------------------------------------------------------
+	// INIT MFC STUFF
+
 	// Set the icon for this dialog.  The framework does this automatically
 	//  when the application's main window is not a dialog
 	SetIcon(m_hIcon, TRUE);			// Set big icon
@@ -397,6 +484,7 @@ BOOL CPTZControlDlg::OnInitDialog()
 			&m_btSettings,
 			&m_btWebCam[0],
 			&m_btWebCam[1],
+			&m_btWebCam[2],
 		};
 		for (auto* pBtn : apButtons)
 		{
@@ -419,23 +507,10 @@ BOOL CPTZControlDlg::OnInitDialog()
 	m_btMemory.SetCheckStyle();
 	for (auto &btn : m_btWebCam)
 		btn.SetCheckStyle();
-	
-	// First Center
-	CenterWindow();
-
-	// Adjust the window
-	CRect rect;
-	GetWindowRect(rect);
-	CPoint pt = rect.TopLeft();
-	rect.OffsetRect(-pt);
-	pt.x = theApp.GetProfileInt(REG_WINDOW,REG_WINDOW_POSX,pt.x);
-	pt.y = theApp.GetProfileInt(REG_WINDOW,REG_WINDOW_POSY,pt.y);
-	rect.OffsetRect(pt);
-	AdjustVisibleWindowRect(rect);
-
-	// Move it
-	SetWindowPos(&CWnd::wndTopMost, rect.left, rect.top, 0, 0, SWP_NOSIZE);
 
+	//---------------------------------------------------------------------
+	// INIT AND FIND WEB CAMS
+	// 
 	// Try to find the Device list
 	CStringArray aDevices;
 	CWebcamController::ListDevices(aDevices);
@@ -457,10 +532,10 @@ BOOL CPTZControlDlg::OnInitDialog()
 
 	// Find the devices to search for. We have some default devices if no other is set in 
 	// the registry o on the command line.
-CStringArray aStrCameraNameToSearch;
+	CStringArray aStrCameraNameToSearch;
-	aStrCameraNameToSearch.Add(DEFAULT_DEVICE_NAME_1);
+	for (const auto *p : g_aCameras)
-	aStrCameraNameToSearch.Add(DEFAULT_DEVICE_NAME_2);
+		aStrCameraNameToSearch.Add(p);
-	CString strCameraNameToSearch = theApp.GetProfileString(REG_DEVICE,REG_DEVICENAME,_T(""));
+	CString strCameraNameToSearch = theApp.GetProfileString(REG_DEVICE, REG_DEVICENAME, _T(""));
 	if (!strCameraNameToSearch.IsEmpty())
 		aStrCameraNameToSearch.Add(strCameraNameToSearch);
 	if (!theApp.m_strDevName.IsEmpty())
@@ -495,6 +570,9 @@ CStringArray aStrCameraNameToSearch;
 			}
 		}
 	}
+	
+	// save the camera names.
+	m_strCameraDeviceNames = strCameras;
 
 	// On SHIFT and CTRL key down we show all found camera device names.
 	if (theApp.m_bShowDevices || (::GetAsyncKeyState(VK_SHIFT) & 0x8000) && (::GetAsyncKeyState(VK_CONTROL) & 0x8000))
@@ -511,14 +589,52 @@ CStringArray aStrCameraNameToSearch;
 		AfxMessageBox(IDP_ERR_NO_CAMERA, MB_ICONERROR);
 	}
 
-	// Only 1 or none, we don't need the camera selection buttons
+	//---------------------------------------------------------------------
-	if (m_iNumWebCams<=1)
+	// ADJUST THE DIALOG
+
+	// Calculate the with an position of the Grid.
+	CRect rectBtn11, rectBtn12, rectBtn21;
+	m_btWebCam[0].GetWindowRect(rectBtn11);
+	m_btWebCam[1].GetWindowRect(rectBtn12);
+	m_btExit.GetWindowRect(rectBtn21);
+	ScreenToClient(rectBtn11);
+	ScreenToClient(rectBtn12);
+	ScreenToClient(rectBtn21);
+
+	CPoint pointBase { rectBtn11.TopLeft() };
+	CSize sizeRaster { rectBtn21.left-rectBtn11.left, rectBtn12.top-rectBtn11.top };
+
+	// Get the required layout
+	const auto &layout = g_layout[m_iNumWebCams];
+
+	for (const auto* pLayoutBtn = layout.pButtons; pLayoutBtn->nId; ++pLayoutBtn)
 	{
-		// Sow the web cam buttons only if we have 2 cams
+		CWnd *pWnd = GetDlgItem(pLayoutBtn->nId);
-		for (auto &btn : m_btWebCam)
+		// Move the button and hide or show the button
-			btn.ShowWindow(SW_HIDE);
+		pWnd->SetWindowPos(nullptr, 
+						   pointBase.x + pLayoutBtn->x * sizeRaster.cx, pointBase.y + pLayoutBtn->y * sizeRaster.cy, 
+						   0, 0, SWP_NOSIZE|SWP_NOZORDER|(pLayoutBtn->bShow ? SWP_SHOWWINDOW : SWP_HIDEWINDOW)			
+		);
+		pWnd->EnableWindow(pLayoutBtn->bShow);
 	}
 
+	// First Center
+	CenterWindow();
+
+	// Adjust the window
+	CRect rect;
+	GetWindowRect(rect);
+	CPoint pt = rect.TopLeft();
+	rect.OffsetRect(-pt);
+	pt.x = theApp.GetProfileInt(REG_WINDOW, REG_WINDOW_POSX, pt.x);
+	pt.y = theApp.GetProfileInt(REG_WINDOW, REG_WINDOW_POSY, pt.y);
+	rect.OffsetRect(pt);
+	AdjustVisibleWindowRect(rect);
+
+	// Move it
+	SetWindowPos(&CWnd::wndTopMost, rect.left, rect.top, rect.Width()+layout.cxDelta*sizeRaster.cx, rect.Height(), 0);
+
+	// Set the tooltips for all presets
 	for (int i = 0; i < CWebcamController::NUM_PRESETS; ++i)
 	{
 		for (int j = 0; j < CPTZControlDlg::NUM_MAX_WEBCAMS; ++j)
@@ -687,7 +803,8 @@ BOOL CPTZControlDlg::OnBtPreset(UINT nId)
 
 BOOL CPTZControlDlg::OnBtWebCam(UINT nId)
 {
-	SetActiveCam(nId==IDC_BT_WEBCAM1 ? 0 : 1);
+	SetActiveCam(nId==IDC_BT_WEBCAM1 ? 0 :
+				 nId==IDC_BT_WEBCAM2 ? 1 : 2);
 	return 1;
 }
 
@@ -789,7 +906,8 @@ void CPTZControlDlg::OnBtUnpushed()
 void CPTZControlDlg::OnBtSettings()
 {
 	CSettingsDlg dlg;
-	dlg.m_strCameraName = m_strCameraDeviceName;
+	dlg.m_strCameraName = m_strCameraDeviceNames;
+	dlg.m_strCameraName.Replace(_T("\r\n"), _T(", "));
 	dlg.m_bLogitechCameraControl = GetCurrentWebCam().UseLogitechMotionControl();
 	dlg.m_iMotorIntervalTimer = GetCurrentWebCam().GetMotorIntervalTimer();
 

PTZControl/PTZControlDlg.h

@@ -73,7 +73,7 @@ public:
 	~CPTZControlDlg();
 // Dialog Data
 	enum { IDD = IDD_PTZCONTROL_DIALOG };
-	static const int NUM_MAX_WEBCAMS = 2;
+	static const int NUM_MAX_WEBCAMS = 3;
 
 protected:
 	CPTZButton m_btZoomIn;
@@ -100,7 +100,7 @@ protected:
 	CString		m_strTooltips[NUM_MAX_WEBCAMS][CWebcamController::NUM_PRESETS];
 
 	HACCEL		m_hAccel;
-	CString m_strCameraDeviceName;
+	CString		m_strCameraDeviceNames;
 	int			m_iCurrentWebCam;		// zero based index to m_aWebCams
 	int			m_iNumWebCams;
 

PTZControl/SettingsDlg.cpp

@@ -27,6 +27,12 @@ void CSettingsDlg::DoDataExchange(CDataExchange* pDX)
 {
 	CDialogEx::DoDataExchange(pDX);
 	DDX_Text(pDX, IDC_ED_CAMERA, m_strCameraName);
+	DDX_Check(pDX, IDC_CH_LOGITECHCONTROL, m_bLogitechCameraControl);
+	DDX_Text(pDX, IDC_ED_MOTORTIME, m_iMotorIntervalTimer);
+	DDX_Control(pDX, IDC_ED_MOTORTIME, m_edMotorInterval);
+	DDX_Control(pDX, IDC_CH_LOGITECHCONTROL, m_chLogitechControl);
+	
+	// Tooltips
 	DDX_Text(pDX, IDC_ED_TOOLTIP_1_1, m_strTooltip[0][0]);
 	DDX_Text(pDX, IDC_ED_TOOLTIP_1_2, m_strTooltip[0][1]);
 	DDX_Text(pDX, IDC_ED_TOOLTIP_1_3, m_strTooltip[0][2]);
@@ -43,10 +49,15 @@ void CSettingsDlg::DoDataExchange(CDataExchange* pDX)
 	DDX_Text(pDX, IDC_ED_TOOLTIP_2_6, m_strTooltip[1][5]);
 	DDX_Text(pDX, IDC_ED_TOOLTIP_2_7, m_strTooltip[1][6]);
 	DDX_Text(pDX, IDC_ED_TOOLTIP_2_8, m_strTooltip[1][7]);
-	DDX_Check(pDX, IDC_CH_LOGITECHCONTROL, m_bLogitechCameraControl);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_1, m_strTooltip[2][0]);
-	DDX_Text(pDX, IDC_ED_MOTORTIME, m_iMotorIntervalTimer);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_2, m_strTooltip[2][1]);
-	DDX_Control(pDX, IDC_ED_MOTORTIME, m_edMotorInterval);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_3, m_strTooltip[2][2]);
-	DDX_Control(pDX, IDC_CH_LOGITECHCONTROL, m_chLogitechControl);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_4, m_strTooltip[2][3]);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_5, m_strTooltip[2][4]);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_6, m_strTooltip[2][5]);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_7, m_strTooltip[2][6]);
+	DDX_Text(pDX, IDC_ED_TOOLTIP_3_8, m_strTooltip[2][7]);
+
 	if (pDX->m_bSaveAndValidate)
 		m_iMotorIntervalTimer = min(max(10,m_iMotorIntervalTimer),1000);
 }

PTZControl/resource.h

@@ -16,42 +16,52 @@
 #define IDC_CHECK1                      1001
 #define IDC_CH_LOGITECHCONTROL          1001
 #define IDC_BT_UP                       1002
-#define IDC_ED_TOOLTIP_1_1                1002
+#define IDC_ED_TOOLTIP_1_1              1002
 #define IDC_BT_DOWN                     1003
-#define IDC_ED_TOOLTIP_1_2                1003
+#define IDC_ED_TOOLTIP_1_2              1003
 #define IDC_BT_HOME                     1004
-#define IDC_ED_TOOLTIP_1_3                1004
+#define IDC_ED_TOOLTIP_1_3              1004
 #define IDC_BT_MEMORY                   1005
-#define IDC_ED_TOOLTIP_1_4                1005
+#define IDC_ED_TOOLTIP_1_4              1005
 #define IDC_BT_PRESET1                  1006
-#define IDC_ED_TOOLTIP_1_5                1006
+#define IDC_ED_TOOLTIP_1_5              1006
 #define IDC_BT_PRESET2                  1007
-#define IDC_ED_TOOLTIP_1_6                1007
+#define IDC_ED_TOOLTIP_1_6              1007
 #define IDC_BT_PRESET3                  1008
-#define IDC_ED_TOOLTIP_1_7                1008
+#define IDC_ED_TOOLTIP_1_7              1008
 #define IDC_BT_PRESET4                  1009
-#define IDC_ED_TOOLTIP_1_8                1009
+#define IDC_ED_TOOLTIP_1_8              1009
 #define IDC_BT_PRESET5                  1010
 #define IDC_ED_CAMERA                   1010
 #define IDC_BT_PRESET6                  1011
 #define IDC_EDIT1                       1011
 #define IDC_ED_MOTORTIME                1011
 #define IDC_BT_PRESET7                  1012
-#define IDC_ED_TOOLTIP_2_1                1012
+#define IDC_ED_TOOLTIP_2_1              1012
 #define IDC_BT_PRESET8                  1013
 #define IDC_ED_TOOLTIP_2_2              1013
 #define IDC_BT_ZOOM_IN                  1014
-#define IDC_ED_TOOLTIP_2_3               1014
+#define IDC_ED_TOOLTIP_2_3              1014
 #define IDC_BT_ZOOM_OUT                 1015
-#define IDC_ED_TOOLTIP_2_4               1015
+#define IDC_ED_TOOLTIP_2_4              1015
 #define IDC_BT_EXIT                     1016
-#define IDC_ED_TOOLTIP_2_5               1016
+#define IDC_ED_TOOLTIP_2_5              1016
 #define IDC_BT_SETTINGS                 1017
-#define IDC_ED_TOOLTIP_2_6               1017
+#define IDC_ED_TOOLTIP_2_6              1017
 #define IDC_BT_WEBCAM1                  1018
-#define IDC_ED_TOOLTIP_2_7               1018
+#define IDC_ED_TOOLTIP_2_7              1018
 #define IDC_BT_WEBCAM2                  1019
-#define IDC_ED_TOOLTIP_2_8               1019
+#define IDC_ED_TOOLTIP_2_8              1019
+#define IDC_BT_WEBCAM3                  1020
+#define IDC_ED_TOOLTIP_3_1              1020
+#define IDC_ED_TOOLTIP_3_2              1021
+#define IDC_ED_TOOLTIP__3_3             1022
+#define IDC_ED_TOOLTIP_3_3              1022
+#define IDC_ED_TOOLTIP_3_4              1023
+#define IDC_ED_TOOLTIP_3_5              1024
+#define IDC_ED_TOOLTIP_3_6              1025
+#define IDC_ED_TOOLTIP_3_7              1026
+#define IDC_ED_TOOLTIP_3_8              1027
 #define DC_BT_SETTINGS                  32791
 
 // Next default values for new objects
@@ -59,7 +69,7 @@
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        135
-#define _APS_NEXT_COMMAND_VALUE         32793
+#define _APS_NEXT_COMMAND_VALUE         32799
 #define _APS_NEXT_CONTROL_VALUE         1012
 #define _APS_NEXT_SYMED_VALUE           101
 #endif

README.md

@@ -2,9 +2,17 @@
 
 ## History
 This small program is designed to control a Logitech PTZ 2 Pro. The camera was purchased to stream our church services.
-Unfortunately, it quickly turned out that the operation with the remote control is possible but cumbersome and inaccurate, since the camera was installed directly behind and above the video technician. So I made the decision to build a corresponding control program.
+Unfortunately, it quickly turned out that the operation with the remote control is possible but cumbersome and inaccurate. The camera was installed directly behind and above the video technician and always pointing back with the remote control was not comfortable. 
-Some month later we bought a second camera and the program was extended by the function to control another camera. A maximum of two cameras are supported.
+The control Logitech software shipped with the camera is completely worthless.
-And finally I added support for the Logitech Rally.
+So, I made the decision to build a corresponding control program.
+Some months later we bought a second camera, and the program was extended by the function to control another camera. At this time a maximum of two cameras was supported.
+Later added support for the Logitech Rally, the PTZ Pro and other Logitech cameras. 
+And finnaly as last feature the PTZcontrol now supports three cameras.
+
+### Where is the basic code from?
+It wasn't easy to get code that shows how to control a PTZ camera. 
+Finally I contacted Lgoitech and I received download link to the `Logitech Collaboration Software Reference Kit` (Logitech CSRK)
+I found some Lync remote control code in it, that gave me some hints and the guids and usage for the Logitect camera interface.
 
 ## Used interfaces
 The program directly uses the camera media control via the Windows SDK (see links in the source code).
@@ -23,7 +31,7 @@ The program supports tooltips that and you can define them yourself to give the
 ## Used environment and libraries
 I used the Visual Studoi 2019 Community Edition to develop this program with C++.
 MFC and ATL as the library. No additional software is used.
-The EXE runs alone, without installing any other files.
+The EXE runs alone, without installing any other files or DLLs or any installation.
 
 ## Behaviour
 The program is always in the foreground and has been designed relatively compact and small, so that you can hover  somewhere over your OBS program and it is really easy to use.
@@ -36,12 +44,13 @@ All settings are stored in the registry under the branch `HKEY_CURRENT_USER\SOFT
 See the command line secion too.
 
 ### Supported Cameras
-Currently, the Logitech PTZ 2 Pro and Logitech Rally cameras are automatically detected.
+Currently, the Logitech PTZ 2 Pro, PTZ Pro, Logitech Rally cameras and ConferenceCam CC3000e Camera are automatically detected.
 For other cameras, you can try to force detection by specifying the name (or part of the name) of the cameras in the registry or on the command line.
 
 Internally, all cameras that have one of the following tokens in the name are automatically used:
-- *PTZ 2 Pro*
+- *PTZ Pro*
 - *Logi Rally*
+- *ConferenceCam*
 
 ### Guard Thread
 Unfortunately, we have sometimes had the experience that OBS or the USB bus hangs with a camera. The PTZControl program then usually stops and stops responding because the camera control commands block the application.
@@ -61,12 +70,24 @@ If you click on a direction button once, the motor is turned on and off again af
 If the direction button remains pressed, the motor remains switched on for the corresponding direction until the button is released again.
 This control seems more effective and accurate to me and is the standard. The disadvantage is that if the timer interval is too small, the camera does not react immediately when a button is clicked. But since precision was more important to me because our camera is installed relatively far away from the podium, I use this setting with a 70msec timer.
 
+## Hotkeys
+The program has serveral hotkeys that allows a control without the mouse when it has the focus.
+- Pan-Tilt control with Left, Right, Up, Down keys.
+- Home position with Num-0, Home keys.
+- Memory function with the M-key.
+- Recall stored position with the numeric keys 1-8 or the numeric key pad keys Num-1 to Num-8.#
+- Open the setings dialog with Num-Divide or Num-Multiply
+- Zoom in/out Page-Up/Down, Num+Plus, Num-Minus
+- Select Camera 1. Alt+1, Alt+Num-1, Alt+Page-Up
+- Select Camera 2. Alt+2, Alt+Num-2, Alt+Page-Down
+
+
 ## Command Line Options
 A few options can be set from the command line. Command-line switches override the settings in the registry.
 
 **-device:"name of device"**
 The device option can be used to specify a name component of a camera to be used for control. 
-If you enter "*" as the name, then each camera will be recognized.
+If you enter "*" as the name, then any camera will be recognized.
 
 **-showdevices**
 Displays a message box after startup showing the name(s) of the detected cameras.
@@ -77,10 +98,10 @@ At startup, a detected camera is moved to the home position (Logitech Preset) an
 **-noguard**
 -noguard prevents the application from terminating itself in a controlled manner. This can be especially important in the event of a bug and for testing.
 
-## Registry 
+## Registry settings
 In the registry branch `HKEY_CURRENT_USER\SOFTWARE\MRi-Software\PTZControl\Options` it is possible to preset the following options  without using the command line.
 
-**NoReset (DWORD value**
+**NoReset (DWORD value)**
 *Value <>0:* Has the same function as -noreset on the command line. The current camera and zoom position is maintained when starting the program. Value = 0: When starting the program, you move to the home position and zoom to maximum wide angle. (Default)
 
 **NoGuard (DWORD value)**