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I wrote a Java application that uses the java.awt.Robot to take screen captures of the screen and was wondering if capturing a program using DirectX/OpenGL would be possible?
Each time I try to do this, I get a black screen
Yes it is possible. But maybe only in limited circiumstances.
I’ve successfully captured the contents on OpenGL (jogl) windows on linux and windows using the Robot createScreenCapture.
Some specific information about the implementation that may be different for you:
application.
Make sure you pass it the correct coordinates. You can get the screen coordinates to use from the GraphicsEnvironment