Class WGL


  • public class WGL
    extends java.lang.Object
    Native bindings to WGL functionality.
    • Method Detail

      • wglCreateContext

        public static long wglCreateContext​(long hdc)
        Creates a new OpenGL rendering context, which is suitable for drawing on the device referenced by device. The rendering context has the same pixel format as the device context.
        Parameters:
        hdc - handle to a device context for which the function creates a suitable OpenGL rendering context
      • wglCreateLayerContext

        public static long wglCreateLayerContext​(long hdc,
                                                 int layerPlane)
        Creates a new OpenGL rendering context for drawing to a specified layer plane on a device context.
        Parameters:
        hdc - the device context for a new rendering context
        layerPlane - the layer plane to which you want to bind a rendering context. The value 0 identifies the main plane. Positive values of layerPlace identify overlay planes, where 1 is the first overlay plane over the main plane, 2 is the second overlay plane over the first overlay plane, and so on. Negative values identify underlay planes, where 1 is the first underlay plane under the main plane, 2 is the second underlay plane under the first underlay plane, and so on. The number of overlay and underlay planes is given in the reserved member of the PIXELFORMATDESCRIPTOR structure.
      • wglCopyContext

        public static boolean wglCopyContext​(long src,
                                             long dst,
                                             int mask)
        Copies selected groups of rendering states from one OpenGL rendering context to another.
        Parameters:
        src - the source OpenGL rendering context whose state information is to be copied
        dst - the destination OpenGL rendering context to which state information is to be copied
        mask - which groups of the src rendering state are to be copied to dst. It contains the bitwise-OR of the same symbolic names that are passed to the PushAttrib function. You can use ALL_ATTRIB_BITS to copy all the rendering state information.
      • wglDeleteContext

        public static boolean wglDeleteContext​(long context)
        Deletes a specified OpenGL rendering context.
        Parameters:
        context - handle to an OpenGL rendering context that the function will delete
      • wglGetCurrentContext

        public static long wglGetCurrentContext()
        Obtains a handle to the current OpenGL rendering context of the calling thread.
      • wglGetCurrentDC

        public static long wglGetCurrentDC()
        Obtains a handle to the device context that is associated with the current OpenGL rendering context of the calling thread.
      • nwglGetProcAddress

        public static long nwglGetProcAddress​(long proc)
        Unsafe version of: GetProcAddress
      • wglGetProcAddress

        public static long wglGetProcAddress​(java.nio.ByteBuffer proc)
        
        public static long wglGetProcAddress​(java.lang.CharSequence proc)
        
        Returns the address of an OpenGL extension function for use with the current OpenGL rendering context.
        Parameters:
        proc - points to a null-terminated string that is the name of the extension function. The name of the extension function must be identical to a corresponding function implemented by OpenGL.
      • wglMakeCurrent

        public static boolean wglMakeCurrent​(long hdc,
                                             long hglrc)
        Makes a specified OpenGL rendering context the calling thread's current rendering context. All subsequent OpenGL calls made by the thread are drawn on the device identified by device. You can also use MakeCurrent to change the calling thread's current rendering context so it's no longer current.
        Parameters:
        hdc - handle to a device context. Subsequent OpenGL calls made by the calling thread are drawn on the device identified by dc.
        hglrc - handle to an OpenGL rendering context that the function sets as the calling thread's rendering context. If context is NULL, the function makes the calling thread's current rendering context no longer current, and releases the device context that is used by the rendering context. In this case, hdc is ignored.
      • wglShareLists

        public static boolean wglShareLists​(long hglrc1,
                                            long hglrc2)
        Enables multiple OpenGL rendering contexts to share a single display-list space.
        Parameters:
        hglrc1 - the OpenGL rendering context with which to share display lists.
        hglrc2 - the OpenGL rendering context to share display lists with hglrc1. The hglrc2 parameter should not contain any existing display lists when wglShareLists is called.