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VoverlaX User Manual

  

                                              Page 9 

    

Version 1.0.0.2

 

Ticking the “

Transparent

” box can make 2 partially overlapped text items both appear properly like this: 

 

 

Ticking the 

Unicode 

box 

 below the 

Text String 

field allows typing Unicode characters (Chinese, 

Japanese, Korean etc) as text overlaid on incoming video. 
 

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): 

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 

Timer

 will be automatically stopped since one 

VoverlaX 

card can only display one 

Timer

 at any time. 

 
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

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание VoverlaX

Страница 1: ...e Contents 2 3 Minimum System Requirement 2 4 Hardware Installation 3 5 Software Installation 3 6 Starting the Software 4 7 Operate VoverlaX Card 4 7 1 Generic Operations 5 7 2 Overlay Items 6 7 2 1 Text Overlay Item 7 7 2 2 Timer Overlay Item 9 7 2 3 Graphics File Overlay Item 10 7 2 4 Card Operation Overlay Item 12 7 2 5 Window Overlay Item 13 7 3 Overlay Item List 14 7 4 Using Multiple VoverlaX...

Страница 2: ...ency Colours on 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 VCR Constant Alpha Channel Value Change under software control for timing and increment Horizo...

Страница 3: ...r software installation and application software installation 5 1 After hardware installation and PC reboot MS Windows will inform that new hardware is found 5 2 Put the VoverlaX installation CD into PC s CD DVD drive click Next button let Windows search for device driver specifically from the drv folder on the installation CD Disk search the drv x86 if the Windows is 32 Bit or search the drv x64 ...

Страница 4: ...be used properly 5 3 To install the application software click Next on the Welcome to the VoverlaX Setup Wizard window which normally starts up automatically after inserting the set up CD or will appear after double clicking the Start bat software on the set up CD there might be a vc 2008 Redistributable installation and a Net Framework 3 5 installation preceding this Wizard window if these two so...

Страница 5: ...ed for Overlay Items and Item List such as Display Current Item Add Item to Item List Save Open Item List File etc 7 1 Generic Operations The top area 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 Signal Co...

Страница 6: ...ars on the Main Output s Composite and SVideo ports and or the Second Output s Composite port the lowest BNC socket Note colour bar display will not affect still image grabbing function grabbed still image is as if the colour bar is not on The Chip Register Write can directly alter on board video decoder encoder ICs operations 7 2 Overlay Items Below the Generic Operation area on the left is the O...

Страница 7: ... 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 The following settings note AlphaBk is set to 126 will create a word Blink with half transparent background colour As ...

Страница 8: ... Return Move check boxes control if the movement will repeat when reaching the X2 Y2 position As shown in the following examples the AlphaBk value controls the visibility of the text s surrounding background colour when the BkMode is Opaque and the Transparent CheckBox is cleared The text Font Name Font Point Foreground Colour Background Colour Background Mode Transparency can all be changed by us...

Страница 9: ...arent background Background Colour must be Black that will run forever until being stopped manually since Duration is zero 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 Timer will be automatically stopped since one VoverlaX ca...

Страница 10: ... a value 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 c...

Страница 11: ...p 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 Raste...

Страница 12: ... graphics software such as MS Paint or Adobe PhotoShop to shrink them first is recommended 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 Card Operation Overlay Item operates the VoverlaX card directly normally without involving any PC generated graphics data except in the Overlay Area ...

Страница 13: ...on TV or display a live animation to external TV etc The window selection 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 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 ...

Страница 14: ...he 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 Pressing the Stop button will stop ...

Страница 15: ...m List ListBox then click Display Selected Items button next to it all VoverlaX cards with Timer defined will start displaying overlaid timer simultaneously 8 Support Technical support is at support inventa com au 9 Source Code The VoverlaX exe software is supplied with full C source code together with the VoverlaX card s SDK A sample VisualBasic application VoverlaXVB exe and a sample C applicati...

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