Graphics.Handle
From Xojo Documentation
Read-Only Property (As Integer )
Gets the OS Handle for the passed Type. Pass a Graphics class constant to specify the Type.
The class constants are as follows:
1-HandleTypeHDC. Gets the HDC on Windows.
2-HandleTypeCGrafPtr. Gets the QuickDraw CGrafPtr on Macintosh.
3-HandleTypeGdkDrawablePtr. Gets the GdkDrawable * on Linux.
4-HandleTypeGdkGCPtr. Gets the GdkGC * on Linux.
5-HandleTypeCGContextRef
6-HandleTypeGDIPlusGraphics. Obtains a handle to a GDI+ graphics handle. This requires that App.UseGDIPlus is enabled.Introduced 2009r4
Handle will return zero if the requested handle Type is not available or is not supported.