Re: Sample to screen capture with fix position and rectangular height + width area

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Thursday, December 9, 2010 4:46:09 PM(UTC)

tthon

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Hi,

Is there any sample to capture screen with fix position and rectangular height + width area in VB6?

Thanks.


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#2 Posted : Sunday, December 12, 2010 3:29:02 AM(UTC)

Adam Boulad

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Are you referring to our Imaging Screen Capture feature or our multimedia Video Screen Capture filter?
Also, which LEADTOOLS version (15, 16.5, 17, etc.) and programming interface (ActiveX, .NET COM interop classes, DLL API, etc.) are you using?

#3 Posted : Sunday, December 12, 2010 4:24:49 PM(UTC)

tthon

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Posts: 6

Imaging Screen Capture feature. I am using LeadTools version 16 with .NET COM interop classes.

#4 Posted : Tuesday, December 14, 2010 5:11:25 AM(UTC)

Adam Boulad

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You can use our ScreenCaptureEngine to take a screenshot of the entire screen, active window or a certain rectangle. If you don't want user interaction, you can use windows API functions to take a full screenshot, then use the RasterImage.FromDib method to convert it to RasterImage object and use the CropCommand to cop the image to the needed size.
You can check the ScreenCaptureDemo that uses our ScreenCaptureEngine in the following location:
[LEADTOOLS 16.5]\Examples\COM\VB\

#5 Posted : Tuesday, December 14, 2010 10:35:45 PM(UTC)

tthon

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Posts: 6

I try to use the CropCommand.RasterCommand.Run function in VB6 to capture certain screen but it require "command" in parameter. Is there any documentation that stated details the commands?

tthon attached the following image(s):

#6 Posted : Wednesday, December 15, 2010 1:34:32 AM(UTC)

Adam Boulad

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Our v16.5 COMInterop functions are wrappers for our .NET classes. So for documentation, you can refer to our .NET help file.

You can also check the ImageProcessingDemo sample project in the directory below which uses the CropCommand:
[LEADTOOLS 16.5]\Examples\COM\VB\

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