Application Manual
Contents
1. Targa graphics files tga will not have their width and height automatically calculated and they can not be shrunk or expanded 7 2 4 Card Operation Overlay Item Overlay Item Aloha Start 255 Alpha End 255 C Alpha Rotate Item Type Overlay Card Step O Intervalims i 0 Duration sec io Foreground Colour Transparency Colour i Transparent Location Move Step Pixel Intervaltms t x1 20 iy 20 width 240 ie gt 00 xZ o vafo Height 240 Card Operation Clear All Clear Area Main Output Overlay on Video Main Output Overlay Only Frame Buffer Main Output Overlay Onlylaraphics Alpha Main Output video Only Overlay Area Move Overlay Area Set Colour Phase Locking TY Phase Locking YTR Restore Default Setup Second Output Frame Buffer Second Output Graphics Alpha Second Output video Overlay Second Output video Onl Card Operation Overlay Item operates the Voverlay card directly normally without involving any PC generated graphics data except in the Overlay Area Set Colour operation if the Transparent checkbox is not ticked the Foreground Colour will be used to fill the area s pixels while if the Transparent checkbox is ticked then the Foreground Colour will be used to fill the area s pixels where the current colours are different from the Transparency Colour Also in this Overlay Area Set Colour card operation if the Transparent is ticked and the Move Step and Interval fields2. gt Hardware gt DeviceManager gt Sound video and game controllers category has a device driver line Voverlay ver b for windows XP Vista 7 listed on 32 bit Windows or Voverlay for windows x64 on 64 bit Windows for each card without question or exclamation mark VOVERLAY User Manual Page 3 Version 1 2 4 0 Device Manager File Action View Help Bes amp mM DUOLORESPSDEVL 34 1394 Debugger Device Computer z Disk drives a Display adapters 2 DYDICD ROM drives ig Human Interface Devices IDE ATAIATAPI controllers IEEE 1394 Bus host controllers gt Keyboards Mice and other pointing devices Monitors E Network adapters 3 Processors g SCSI and RAID controllers Sound video and game controllers Audio Codecs s Inventa MPEGIO 1 5447134 Legacy Audio Drivers Legacy Video Capture Devices Media Control Devices YIA High Definition Audio Video Codecs verlay ver b For windows sPyvistal p VYoverlay wer b For windows Pivistal Wv2010 PCI Driver System devices Universal Serial Bus controllers See dee 8666969959696 When device driver has been installed properly Windows will have a pop up message box at the U Found New Hardware Your new hardware is installed and ready to use 9 1 54PM lower right corner of the screen Please note after re installing MS Windows on a PC with VOVERLAY card remaining seated
3. CD DVD drive click Next button let Windows search for device driver specifically from the driver 32Bit or driver 64Bit folder on the installation CD Disk depending on if the Windows is 32 Bit or 64Bit During the driver installation ignore those warnings claiming the device driver has not passed Windows Logo testing etc press Continue Anyway to keep going until the driver is installed then check the Windows ControlPanel to make sure the Found New Hardware Wizard Found New Hardware Wizard Please choose your search and installation options Search for the best driver in these locations This wizard helps you install software for Use the check boxes below to limit or expand the default search which includes local Voverlay ver b for windows AP Mista path and removable media The best driwer found will be installed C Search removable media floppy CD ROM Pr PAA If pour hardware came with an installation CD Include this location in the search lt 2 or floppy disk insert it now EAvoverlaywoverlay Setup COs voverlay Setup CO Browse What do you want the wizard to do Dont search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that Install the software automatically Recommended the driver you choose will be the best match for your hardware Click Next bo continue System
4. Graphics Files to realize Blue Screen effect Overlay Timer support for time date mille second frame number Overlay Card Operation support for instant screen clear area alpha change port I O selection etc Overlay Windows support for constantly displaying any window s content to external TV amp VCR Constant Alpha Channel Value Change under software control for timing and increment Horizontal and Vertical Moving Text amp Graphics Overlay with software configurable steps and times Instant Overlay Display to external TV from any combination of overlay items constructed amp loaded Save and Open Overlay Item List Files for repeated use of complicated overlay schemes and patterns Full SDK for Software Development inc full C VB C source codes of fully functioning executables Runs on 32 Bit and 64 Bit MS Windows XP Vista Windows 7 Windows 8 2 Package Contents Voverlay PCI Card One Installation CD One User Manual One SDK Manual 3 Minimum System Requirement Hardware Any Intel AMD CPU PC one empty PCI slot Software Microsoft Windows XP Vista or Windows 7 8 32 Bit or 64 Bit Please note although running the main Voverlay exe application does not require it running the CSharp exe or VoverlayVB exe application will need the Microsoft Net Framework 3 5 to be installed 4 Hardware Installation Un plug the PC s power cable open PC case locate a free PCI slot plug in the VOVERLAY card and screw it f
5. Video Overlay Application oe Action Software Num of Overlay Card Found 1 Inventa Video Over ee Software Setup Card Overlay Grab Still Image Exit Selecting the Setup Card Overlay item will start the Setup Overlay window where all the major operations for VOVERLAY card can be accomplished Mouse clicking the Action menu will show its menu items r aiig En Setup Overlay SDK ver 1 2 4 0 cx Total Cards E Selected Card Card 0 Grab Image Grab Mode Overlay on Vit Signal Colour Test Input Composite PAL Has Signal Overlay Item es ee a Alpha Start 255 Alpha End 255 Alpha Rotate AlphaBk A Overlay Item List Total Items a i Timer at 0 120 Interval 0 Dura 0 Alp Item Type Timer Display r i oe jonfsec 0 Fre tat 0 0 Line 1 Text Dura 0 Alpha 255 ae Step 0 Interval ms 0 Duration sec 0 le J Text at 0 0 Line 1 Text Dura 0 Alpha Times New Roman Foreground Colour Background Colour BkGr Mode Opaque Font Point 45 Transparent Display MS Add Display Date Display FM Location Duration sec x1 o vaf 120 width 293 _ x2 0 vajo Height 73 Erase Prev Timer Timer Interval ms jo _ Delete Moveulp Stop Select All Display Selected Items DeSelect All Save Item File Name i E Open T MainOutput ColourBar 2ndOutput
6. already being displayed on the same position by previous Overlay operations if there is any SRCCOPY means the new pixels completely replace the original pixel SRCAND means the new pixels do logical AND with the original pixels the BLACKNESS means display black at the positions etc Alpha change X Y change duration etc parameters have the same meaning as in Text and Timer items Graphics File Item has no AlphaBk parameter since it has not background colour Each time a non targa not tga graphics file is loaded its width and height are automatically loaded into the Location 15 320 Yi 300 width 381 noel o yaja Height 366 File Name JEL Width and Height fields height or making these two fields all zeroes will put the graphics exactly as their original width and height in pixels onto the external TV If supplying a width or height different from the graphics file s original width and height the displayed graphics will be shrunk or expanded accordingly Note the current shrunk mechanism does When displaying a graphics file item using these width and VOVERLAY User Manual Page 11 Version 1 2 4 0 not guarantee a perfect shrunk image with proper colour so when displaying graphics files with dimension larger than the maximum screen resolution 720 X 576 Pixel for PAL 720 X 480 Pixel for NTSC using an external graphics software such as MS Paint or Adobe PhotoShop to shrink them first is recommended
7. have values the area s alpha and colour value setting will take place gradually if the MoveStep has a positive value the gradual alpha and colour change will happen from left to right within the specified area X1 Y1 X1 Width Y1 Height in MoveStep pixels every Interval mille second while if the MoveStep has a negative value the gradual alpha and colour change will take place from top towards the bottom within the specified area X1 Y1 X1 Width Y1 Height in MoveStep pixels every Interval mille second VOVERLAY User Manual Page 12 Version 1 2 4 0 7 2 5 Window Overlay Item Overlay Iter Alpha Start 255 Alpha End 255 Alpha Rotate Item Type Window Step 0 Intervalims j 0 Durationisec j 1 TKErrorRange Transparency Colour w Transparent 0 Location Duration sec 4 x1 0 vafo Width 565 Ct ae 0 yo 0 Height 400 i Clear Old Overlay Value Raster Operation SRCCOPY Window Handle O212D2 Class Name VLC Direct video Title Root Window Class Name wWindowlassNR Title WLC media player i Client Area Only Pause Timeims g Window Content Static W E Exit Ban Get A Window Handle Window Overlay Item allows any window on the desktop top to be displayed at video output ports in front of the incoming video or by itself This is useful to create a Video in Video result on TV or display a live animation to external TV etc The window select
8. ColourBar Chip Name Decoder Reg Addr OE Get Reg Clear All Overlay Reg Value Set Reg VOVERLAY User Manual Page 6 Version 1 2 4 0 The Setup Window arranges its functions in several main areas the top and bottom lines are the Generic Operation areas in the middle on the left is the Overlay Items area on the right is the Overlay Item List Box and in between the Item and Item List Box areas there are Operation Buttons that can be used for Overlay Items and Item List such as Display Current Item Add Item to Item List Save and Open Item List File etc 7 1 Generic Operations The top line of the Setup Overlay Window lists several generic operations inc overlay card selection when there are multiple cards installed still image grabbing which will display the grabbed video and or overlay image in the application s main window colour selection and input signal testing operation At the bottom line there are other generic operations Clear all overlay from the video restore PCB default settings display output port colour bar read write register values for encoder decoder IC chips etc 7 2 Overlay Items Below the Generic Operation area on the left is the Overlay Item selection area Overlay Items have Item Types such as Text Timer Graphics File Card Operation and Window theses are used to differentiate the functions and features each type of item can operate Overlay Item Types are selected through the I
9. VOVERLAY PCI Card for Realtime Text and Graphics Overlay on Video User Manual Version 1 2 4 0 Copyright 2014 Inventa Australia Pty Ltd SVideo Input Composite Input SVideo Output Table of Contents 1 Main Features amp Functions wenn nee nnn neeeeee 2 2 Package Contents mn 2 3 Minimum System Requirement nme 2 4 Hardware Installation gt gt menu 2 5 Software Installation gt gt gt mmeennnnnnnnnnnnnnnn 2 6 Starting the Software O eeen 6 7 Operate Voverlay Card gt O aeee 6 7 1 Generic Operations gt gt OOOO sessen 7 7 2 Overlay Items 2 eeaeee 7 7 2 1 Text Overlay Item wenn nn nennnennnene 7 7 2 2 Timer Overlay Item ween nnn n anna anne 9 7 2 3 Graphics File Overlay Item www nee n nnn nnnnnenee 10 7 2 4 Card Operation Overlay lem nun 12 7 2 5 Window Overlay Item i mmanunnnnnnnnnnnnnnn 13 7 3 Overlay Item List 22 eeaeee 14 7 4 Using Multiple Voverlay Cards ween nnn nnnnnnen nee 14 Support ete 15 9 Source Code 2 eee 15 VOVERLAY User Manual Page 1 Version 1 2 4 0 1 Main Features amp Functions VOVERLAY is a Realtime Text amp Graphics on Video Overlay Card with many features amp functions Realtime overlay high quality PC text graphics and video on input video signal and output on BNC Y C ports 256 Level Alpha blending control on all colour pixels mixed with incoming video at full 720X576 480 resolution Instant on board overlay memory read and write with
10. a Raini Me gig ego a men A Red on WRItOBo4 ij Hr Tr Mr oO gory iy my 7 AE tg NN a A ame Ar VOVERLAY User Manual Page 10 Version 1 2 4 0 3 Clear Old Overlay Value This box is only meaningful when box Transparent is also ticked If Clear Old Overlay Value is ticked then those pixels in the graphics file whose colour values and the Transparency Colour have the minimum difference as described in the Transparency Colour above will become totally transparent 1 e the video underneath them will be exposed If this box is cleared then those pixels in the graphics file whose colour values and the Transparency Colour have minimum difference as described in the Transparency Colour above will combine logical or their old alpha value with the new alpha value on screen so that if the resulting alpha is nonzero then some degree of overlay will appear on top of the video this is useful for example to display an half transparent background exposing some of the video underneath The following are examples using the same graphics file with red text ABCD in front of a white background and Transparency Colour is white Alpha Start Alpha End are 128 1 Transparent and Clear Old Overlay Value Ticked 2 Transparent Ticked Clear Old Overlay Value Cleared 4 Raster Operation This controls how the pixels of the graphics file will be combined with the overlay pixels
11. ackground to disappear on the live video Click the Clear Old Overlay Value to make the Transparency effect clean without shivering pixels flying around This box has the same significance as explained in the Graphics File Overlay Item section and it is only meaningful when the Transparent box is ticked VOVERLAY User Manual Page 13 Version 1 2 4 0 7 3 Overlay Item List The Overlay Item List is for holding multiple Overlay Items so that they can be displayed simultaneously on external TV or they can be saved as files for later repeated use Pressing the Add or Delete button in the middle of the screen will add or delete items into or from the Overlay Item List box while with one item selected in the list box pressing MoveUp or MoveDown button will change the selected item s position in the list When some items have been selected in the Item List box pressing the Display Selected Items button will display these items contents on the video output ports in the order of their positions in the list box Overlay Item List Total Items 4 Display Text at 0 0 very First Line Dura 0 Alpha 255 Window at 0 0 Handle 133580 Class VideoRende Add Delete Movellp MoveDown Stop Select All i i De Select all Pressing the Stop button will stop the displaying FEE EEE The Save and Open buttons are used to save the items inside
12. elow AlphaBk field controls how long this Alpha Start lt gt Alpha End visibility change will last a zero duration means the changes will last forever until being cancelled specifically 2 X Y Location Change Setting the X1 Y1 and X2 Y2 values different will cause the text to move horizontally or vertically in the increment of Move Step value every Interval time for Duration period zero Duration means moving forever until being manually stopped Location Static Displa Be Move StepiPixel Interwalims Duration sec x1 0 v1 0 width 0 Oneway Move W Return Move 4 S00 E wz 700 yaj 0 Height 0 Text String Horizontally Moving Text Location Static Displa a Move Stept Pixel Interwalims Duration sec j yif zo vii 0 width 0 Oneway Move W Return Move E 300 E sa 20 ya 500 Height 0 Text String Vertically Moving Text VOVERLAY User Manual Page 8 Version 1 2 4 0 The Oneway Move and Return Move check boxes control if the movement will repeat when reaching the X2 Y2 position As shown in the previous example the AlphaBk value controls the visibility of the text s surrounding D as wins us eS ls is Opaque and the Transparent CheckBox is cleared Bere WERE Tri Sis a be see KUN T The text Font Name Font Point Foreground Colour Background Colour Background Mode Transparency can all be changed by using the corresponding buttons Note to create
13. in PCI slot one Multimedia Controller PCI Device or similar line will appear in the Windows ControlPannel gt System gt Hardware gt DeviceManager window preceded by a yellow question mark or exclamation mark since Windows will not cannot install the device driver software This item will need update driver operation right mouse click then select Update driver to install the proper driver software from the driver folder on the Setup CD before the VOVERLAY card and application software can be used properly Alternatively you can delete this question mark exclamation mark preceded item right mouse click them then select Uninstall highlight the PC s name in the DeviceManager window then select Scan for Hardware Changes VOVERLAY User Manual Page 4 Version 1 2 4 0 Device Manager File i alt View Help Display adapters DYDCD ROM drives 22 Floppy disk controllers u Floppy disk drives 42 IDE ATA 4T4PI controllers 559 IEEE 1394 Bus host controllers se Keyboards 9 Mice and other pointing devices amp Monitors A Network adapters F Other devices d PCI Device Ports COM amp LPT ae Processors Sound a and game controllers EEE Legacy Audio Drivers T Legacy Video Capture Devices A Media Control Devices er
14. ion is through a window s handle or its class name title or its root window s class name and title Pressing the Get A Window Handle button _ Get A Window Handle once then move the mouse cursor now changed to I Beam shape to any window and single click that window that clicked window s handle class name title and root window s class name title values will be copied into the corresponding fields on the Setup Overlay Window Handle Deal Class Name VideoRenderer Title ActiveMovie Window Root Window Class Name Play Wnd SFMediaPla Title chicken irn video Window Clicking the Client Area Only checkbox means only displaying the selected window client area s contents Clicking the Erase on Exit checkbox means the window s display will be cleared when the display duration expires or the display is manually stopped The Pause Time means how long the executing thread will pause in between displaying consecutive frames of the selected window For a live video animation displaying window set this time to 40 80 mille seconds will give good smooth moving result on the output video ports Click the Window Content Static if the content of the window is not changing constantly Click the Transparent check box and select a colour from the Transparency Colour button initiated colour dialog if you wish to make some portion of the window transparent invisible e g making the blue b
15. irmly to the back panel Plug in video cables between the external video input output devices and VOVERLAY To real time view the incoming video mixed with overlaid text graphics external TV monitors need to be connected to the output sockets of the VOVERLAY card Alternatively video capture cards like Inventa MPEGIO2 USBOSDM22 etc can be used to accept video output signals from VOVERLAY to view record the video with overlaid text graphics VOVERLAY User Manual Page 2 Version 1 2 4 0 5 Software Installation Software installation has two steps device driver software installation and application software installation 5 1 After hardware installation the MS Windows will inform that new hardware is found Found New Hardware Wizard Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for curent and updated software by This wizard helps you install software for looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Kultimecia Controller Can Windows connect to Windows Update to search for If your hardware came with an installation CD software SE o floppy disk insert it now Yes this time only Yes now and every time connect a device What do pou want the wizard to do No nat this time Install the software automatically Recommended Click Hest to continue 5 2 Put the Voverlay installation CD into PC s
16. lp Multimedia Controller hein follow the same steps as at the start of this section to install the device driver 5 3 To install the application software click Next on the VOVERLAY Setup Wizard window which normally starts up automatically after inserting the set up CD or will appear after double clicking the Setup bat software on the set up CD ie Voverlay Sila Welcome to the YVoverlay Setup Wizard The installer will guide you through the steps required to install Yoverlay on your computer WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication or distribution of this program or any portion of it may result in severe civil or criminal penalties and will be prosecuted to the maximum extent possible under the law Cancel then follow the on screen instructions to install the application software 5 3 To remove the installed software run VoverlayUninstall exe from the Voverlay program group VOVERLAY User Manual Page 5 Version 1 2 4 0 6 Starting the Software After a successful application software installation a WOVERLAY EXE shortcut icon will appear on the Windows desktop Mouse double clicking this icon will start the software The software can also be started from Window s Start gt Program Files gt Inventa gt Voverlay group 7 Operate Voverlay Card Once started VOVELAY will display its main window Inventa
17. out any delay on outputting video signal Un limited PC generated text graphics and video can be overlaid simultaneously on incoming video Use full Windows Graphics API GDI Direct3D etc to generate un limited graphics overlaid on incoming video Output video with overlaid graphics data is forever synchronized with input video Multiple cards up to 32 can be run on the same PC controllable by the same software Full software control at application and SDK level on video brightness contrast hue and saturation PAL and NTSC video format are supported and software selectable SVideo and Composite Video Input and Output software selectable SVideo output main and secondary Composite video output ports Secondary video output port can be separately configured independent of the main video output Output ports can be software configured to display video only video plus overlay overlay only Built in TBC function always provides clear video output even from old tapes and noisy incoming signal Built in Colour Bar display for the output ports Direct IC Register read write to decoder encoder ICs On board eeprom available for storing application specific data Automatic Video Pass through from input composite to output Composite Port on PC Power Off Overlay Text String support for different font colour font name font size Overlay Graphics Files support for BMP JPEG GIF PND TIFF and Targa format Apply single or a range of Transparency Colours on
18. r will be automatically stopped since one Voverlay card can only display one Timer at any time Duration sec Similar as the Display Date checkbox the Display MS controls if the Mille Second will be displayed while the Display FN controls if the incoming video s Frame Number will be displayed The Font and Alpha parameters have the same effects for the Timer Items as for the Text Item but the Timer Item will not move its X Y location as the Text Item VOVERLAY User Manual Page 9 Version 1 2 4 0 7 2 3 Graphics File Overlay Item TEErrorRange Transparency Colour fy Transparent AJ Overlay Item E aan Be Alpha Start ass Alpha End 255 Alpha Rotate P h E er Item Type Gra hics File ate wa A Step 0 Interval ms 3 0 Duration sec 3 o ERT a fi i k 1 I i wor i f H Erning ante e FF E i W Static Displ Be er Duration sec 8 jo Yl E width 565 IC Oneway Move l l m Return Move oO me 0 2 o Height 400 File Name CHAB Red on White JPG e Clear Old en Value Raster Operation E Sou Kal EICI E W Clear All Overlay Graphics File Items allow graphics files to be displayed over incoming video or by themselves at the output video ports Supported graphics file types are BMP JPG GIF PNG TIF and TGA Apart from the file name selection this item has several new parameters 1 Transparency Colour When Tran
19. selected and changed Appropriately combining these parameters text with numerous different displaying features can be output on external TV overlaid over the incoming video or by themselves without incoming video For example the settings in the previous screenshot will create a blinking text Blink blinking every half a second while slowly moving across the top of the video screen will create a word Blink with half transparent background colour Overlay Item Alpha Start 255 Aloha End 255 Alpha Rotate Alpha k 176 Item Type Text x Step 0 Intervalimns t 0 Durationiser 0 Fonk Marne Times New Roman Foreground Colour Background Colour Bk r Mode Cpaque Font Point 30 Transparent As shown in the screenshot the Text Overlay Item has two time changing parameter sets 1 Alpha Start amp Alpha End Change Setting a these parameters to different values and giving some values to the Alpha Step Interval parameters will cause the displayed text to have a changing visibility every Interval time in Step increment decrement such as gradually fading in or fading out The Alpha Rotate controls when the changing Alpha Start value reaches the Alpha End if it will gradually change back from the Alpha End back to Alpha Start in Step increment decrement or it will abruptly jump back to the original Alpha Start value The Alpha Duration b
20. sparent checkbox is ticked the overlay process will not display the pixels from the graphics file whose colour RGB values and the Transparency Colour value have minimum difference that 1s abs Rp Rt abs Gp Gt abs Bp Bt lt TKErrorRange where abs X is the absolute value of X Rp Gp Bp is the RGB value of the pixel on the graphics file Rt Gt Bt is the RGB value of the TransparencyKey Colour TKErrorRange is a value gt zero as supplied on the screen For example when Transparent checkbox is ticked and the Transparency Colour set to blue RGB 0 0 255 a graphics file with people in front of a blue background will be displayed only with the people over the incoming video the blue background becomes invisible achieving in a blue screen effect 2 TKErrorRange This value makes pixels on the graphics file whose colour values and the Transparency Colour value have minimum difference as indicated above to be invisible exposing the underneath video content Setting this value to be larger than zero will be useful when the area to be made invisible contains non uniform colour e g a white background contains pixels with colours close to but not exactly the pure white as illustrated in the following example where the same overlay graphics file is applied on the same video but on the left Voverlay card with TKErrorRange 0 while on the right Voverlay card with TKErrorRange 220 ih
21. supplied with full C source code together with the Voverlay card s SDK A sample VisualBasic application VoverlayVB exe and a sample C application CSharp exe are also supplied with full source codes all these applications with source codes and their Microsoft VisualStudio project files are under the sre folder on the Setup CD with sub folders C CSharp and VB Please note Microsoft Net Framework 3 5 is required to run the Voverlay VB exe and CSharp exe The Application software and the SDK work under both 32 Bit and 64 Bit MS Windows on 64 Bit MS Windows they run as 32 Bit applications and must be compiled using 32 Bit C VB C etc compilers use x86 Solution Platform VOVERLAY User Manual Page 15 Version 1 2 4 0 VOVERLAY User Manual Page 16 Version 1 2 4 0
22. tem Item Type Type Combo box Each time a different Item Type is selected specific buttons and combox etc controls relevant to that Item Type will be displayed Pressing the Display button between the Overlay Item and Overlay Item List areas will display the currently selected Overlay Item s contents onto the video output ports immediately e g when Clear All Card Operation Item 5rd Operation will clear all overlay contents on all the video output ports is selected pressing Display button Pressing the Stop button ser will stop the displaying Clicking the Clear All Overlay button will erase all the displayed overlays on the current Voverlay card 7 2 1 Text Overlay Item Overlay Tem Alpha Start 255 Alpha End o T Alpha Rotate AlphaBk 1 Item Type Text Step 250 Intervalins 500 Duration sec Font Name Times New Roman Foreground Colour Background Colour Bkr Mode Opaque Font Point 30 Transparent Location Static Display Mowe Steo Pbeel Interwalims Quration sec x1 0 v1 Width 235 Oneway Move TE z E I Return Move x2 700 y2 0 Height 121 Text String Blink VOVERLAY User Manual Page 7 Version 1 2 4 0 Text Overlay Items allow static or moving text to be displayed over incoming video Many parameters inc alpha blending colour font transparency location duration etc can be
23. the item list box if any to files and to load a file s contents back into the Item List Box when loading from an item list file items already in the list box will be cleared 7 4 Using Multiple Voverlay Cards To operate multiple 2 32 Voverlay cards on the same PC select each card s number from the Selected Card Combo box first card is number 0 then apply any operation on this card When using timer based overlay items such as Timer or moving text manual start of an item will automatically stop other timer based items previously defined even on another Voverlay card For example whenever a Timer Overlay Item is started on the currently selected card the previously applied Timer item on another Voverlay card will be automatically stopped To make multiple cards all displaying their own Timer Overlay Items simultaneously the Overlay Item List needs to be used define a Timer for each individual Voverlay card then click the Add button to add this Timer into the Overlay Item List when all timers for all cards are added to the Overlay Item List click the Select All button below the Overlay Item List ListBox then click Display Selected Items button next to it all Voverlay cards with Timer defined will start displaying overlaid timer simultaneously VOVERLAY User Manual Page 14 Version 1 2 4 0 8 Support Technical support is at support inventa com au 9 Source Code The Voverlay exe software is
24. those Transparent Background text as shown above the Background Colour must be set to Black RGB 0 0 0 the BkGr Mode must be Opaque and the Transparent checkbox must be cleared If the Background Colour is non black then the resulting text will have a background of Background Colour such as this Background Colour is green 7 2 2 Timer Overlay Item Timer overlay item has similar parameters as Text overlay items except the displayed text is always the current time and date if Display Date checkbox is checked The setting in the screen shot below displays a one second interval timer at 20 0 position with transparent background Background Colour must be Black that will run forever until being stopped manually since Duration is zero Overlay Them Alpha Start 255 Alpha End 255 Alpha Rotate Alpha k 1 Item Type Timer Step T Interwalirns 0 Duration sec 1 0 Font Mame Times New Roman Foreground Colour Background Calour Ek sr Mode Opaque Font Point 80 Transparent pinay MS Display Date j Display FM Location l 20 Y1 QO width E 7 ya 20 2 0 Height 0 Erase Prey Timer Timer Intervalfrms 4 1000 E5 0542 The Erase Prev Timer checkbox controls if to clear the previously displayed timer if any when the current timer item is displayed Note when a new Timer is defined and the Display button is clicked any previously defined Time
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