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glutuselayer(3glut) [osx man page]

glutUseLayer(3GLUT)						       GLUT						       glutUseLayer(3GLUT)

NAME
glutUseLayer - changes the layer in use for the current window. SYNTAX
#include <GLUT/glut.h> void glutUseLayer(GLenum layer); ARGUMENTS
layer Either GLUT_NORMAL or GLUT_OVERLAY, selecting the normal plane or overlay respectively. DESCRIPTION
glutUseLayer changes the per-window layer in use for the current window, selecting either the normal plane or overlay. The overlay should only be specified if an overlay exists, however windows without an overlay may still call glutUseLayer(GLUT_NORMAL). OpenGL commands for the window are directed to the current layer in use. To query the layer in use for a window, call glutLayerGet(GLUT_LAYER_IN_USE). SEE ALSO
glutEstablishOverlay, glutSetWindow AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutUseLayer(3GLUT)

Check Out this Related Man Page

glutLayerGet(3GLUT)						       GLUT						       glutLayerGet(3GLUT)

NAME
glutLayerGet - retrieves GLUT state pertaining to the layers of the current window. SYNTAX
#include <GLUT/glut.h> int glutLayerGet(GLenum info); ARGUMENTS
info Name of device information to retrieve. GLUT_OVERLAY_POSSIBLE Whether an overlay could be established for the current window given the current initial display mode. If false, glutEstablishOver- lay will fail with a fatal error if called. GLUT_LAYER_IN_USE Either GLUT_NORMAL or GLUT_OVERLAY depending on whether the normal plane or overlay is the layer in use. GLUT_HAS_OVERLAY If the current window has an overlay established. GLUT_TRANSPARENT_INDEX The transparent color index of the overlay of the current window; negative one is returned if no overlay is in use. GLUT_NORMAL_DAMAGED True if the normal plane of the current window has damaged (by window system activity) since the last display callback was trig- gered. Calling glutPostRedisplay will not set this true. GLUT_OVERLAY_DAMAGED True if the overlay plane of the current window has damaged (by window system activity) since the last display callback was trig- gered. Calling glutPostRedisplay or glutPostOverlayRedisplay will not set this true. Negative one is returned if no overlay is in use. DESCRIPTION
glutLayerGet retrieves GLUT layer information for the current window represented by integers. The info parameter determines what type of layer information to return. SEE ALSO
glutEstablishOverlay, glutUseOverlay, glutCreateWindow, glutSetColor AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutLayerGet(3GLUT)
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