-/* CallbackMaker.c */
-/*
- * Program to invoke all the callbacks that "freeglut" supports
- */
-
-
#include <GL/freeglut.h>
#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-
-static int sequence_number = 0 ;
-
-int windows[2] = {0};
-
-/* define status vars showing whether given callback has been called for given window */
-#define CALLBACK_CALLED_VAR(name) int name##_called[2] = {0};
-#define CALLBACK_0V(name) int name##_seq[2] = {-1}; CALLBACK_CALLED_VAR(name);
-#define CALLBACK_1V(name,field) int name##_##field[2] = {-1}; CALLBACK_0V(name);
-#define CALLBACK_2V(name,field1,field2) int name##_##field2[2] = {-1}; CALLBACK_1V(name,field1);
-#define CALLBACK_3V(name,field1,field2,field3) int name##_##field3[2] = {-1}; CALLBACK_2V(name,field1,field2);
-#define CALLBACK_4V(name,field1,field2,field3,field4) int name##_##field4[2] = {-1}; CALLBACK_3V(name,field1,field2,field3);
-CALLBACK_2V(reshape,width,height);
-CALLBACK_2V(position,top,left);
-CALLBACK_3V(key,key,x,y);
-CALLBACK_3V(keyup,key,x,y);
-CALLBACK_3V(special,key,x,y);
-CALLBACK_3V(specialup,key,x,y);
-CALLBACK_1V(visibility,vis);
-CALLBACK_4V(joystick,a,b,c,d);
-CALLBACK_4V(mouse,button,updown,x,y);
-CALLBACK_4V(mousewheel,number,direction,x,y);
-CALLBACK_2V(motion,x,y);
-CALLBACK_2V(passivemotion,x,y);
-CALLBACK_0V(entry);
-CALLBACK_0V(close);
-/* menudestroy is registered on each menu, not a window */
-int menudestroy_called = 0 ;
-/* menustatus and menustate are global callbacks, set for all menus at the same time */
-int menustatus_called = 0;
-int menustate_called = 0;
-
-#define STRING_LENGTH 10
-
-static void
-bitmapPrintf (const char *fmt, ...)
-{
- static char buf[256];
- va_list args;
-
- va_start(args, fmt);
-#if defined(WIN32) && !defined(__CYGWIN__)
- (void) _vsnprintf (buf, sizeof(buf), fmt, args);
-#else
- (void) vsnprintf (buf, sizeof(buf), fmt, args);
-#endif
- va_end(args);
- glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)buf ) ;
-}
-
-static int
-getWindowAndIdx(int *winIdx)
-{
- int window = glutGetWindow();
-
- if (winIdx)
- (*winIdx) = window==windows[0]?0:1;
-
- return window;
-}
-
-static void
-Display(void)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- glClear ( GL_COLOR_BUFFER_BIT );
-
- glDisable ( GL_DEPTH_TEST );
- glMatrixMode ( GL_PROJECTION );
- glPushMatrix();
- glLoadIdentity();
- glOrtho(0, glutGet ( GLUT_WINDOW_WIDTH ),
- 0, glutGet ( GLUT_WINDOW_HEIGHT ), -1, 1 );
- glMatrixMode ( GL_MODELVIEW );
- glPushMatrix ();
- glLoadIdentity ();
- glColor3ub ( 0, 0, 0 );
- glRasterPos2i ( 10, glutGet ( GLUT_WINDOW_HEIGHT ) - 20 ); /* 10pt margin above 10pt letters */
-
- if ( reshape_called[winIdx] )
- {
- bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq[winIdx], reshape_width[winIdx], reshape_height[winIdx] );
- }
-
- if ( position_called[winIdx] )
- {
- bitmapPrintf ( "Position %d: %d %d\n", position_seq[winIdx], position_left[winIdx], position_top[winIdx] );
- }
-
- if ( key_called[winIdx] )
- {
- bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq[winIdx], key_key[winIdx], key_key[winIdx], key_x[winIdx], key_y[winIdx] );
- }
-
- if ( special_called[winIdx] )
- {
- bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq[winIdx], special_key[winIdx], special_key[winIdx], special_x[winIdx], special_y[winIdx] );
- }
-
- if ( visibility_called[winIdx] )
- {
- bitmapPrintf ( "Visibility %d: %d\n", visibility_seq[winIdx], visibility_vis[winIdx] );
- }
-
- if ( keyup_called[winIdx] )
- {
- bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq[winIdx], keyup_key[winIdx], keyup_key[winIdx], keyup_x[winIdx], keyup_y[winIdx] );
- }
-
- if ( specialup_called[winIdx] )
- {
- bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq[winIdx], specialup_key[winIdx], specialup_key[winIdx], specialup_x[winIdx], specialup_y[winIdx] );
- }
-
- if ( joystick_called[winIdx] )
- {
- bitmapPrintf ( "Joystick %d: %d %d %d %d\n", joystick_seq[winIdx], joystick_a[winIdx], joystick_b[winIdx], joystick_c[winIdx], joystick_d[winIdx] );
- }
-
- if ( mouse_called[winIdx] )
- {
- bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq[winIdx], mouse_button[winIdx], mouse_updown[winIdx], mouse_x[winIdx], mouse_y[winIdx] );
- }
-
- if ( mousewheel_called[winIdx] )
- {
- bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq[winIdx], mousewheel_number[winIdx], mousewheel_direction[winIdx], mousewheel_x[winIdx], mousewheel_y[winIdx] );
- }
-
- if ( motion_called[winIdx] )
- {
- bitmapPrintf ( "Motion %d: %d %d\n", motion_seq[winIdx], motion_x[winIdx], motion_y[winIdx] );
- }
-
- if ( passivemotion_called[winIdx] )
- {
- bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq[winIdx], passivemotion_x[winIdx], passivemotion_y[winIdx] );
- }
-
- glMatrixMode ( GL_PROJECTION );
- glPopMatrix ();
- glMatrixMode ( GL_MODELVIEW );
- glPopMatrix ();
- glEnable ( GL_DEPTH_TEST );
-
- printf ( "%6d Window %d Display Callback\n",
- ++sequence_number, window ) ;
- glutSwapBuffers();
-}
-
-static void
-Warning(const char *fmt, va_list ap)
-{
- printf("%6d Warning callback:\n");
-
- /* print warning message */
- vprintf(fmt, ap);
-}
-
-static void
-Error(const char *fmt, va_list ap)
-{
- char dummy_string[STRING_LENGTH];
- printf("%6d Error callback:\n");
-
- /* print warning message */
- vprintf(fmt, ap);
-
- /* terminate program, after pause for input so user can see */
- printf ( "Please enter something to exit: " );
- fgets ( dummy_string, STRING_LENGTH, stdin );
-
- /* Call exit directly as freeglut is messed
- * up internally when an error is called.
- */
- exit(1);
-}
-
-static void
-Reshape(int width, int height)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Reshape Callback: %d %d\n",
- ++sequence_number, window, width, height ) ;
- reshape_called[winIdx] = 1 ;
- reshape_width[winIdx] = width ;
- reshape_height[winIdx] = height ;
- reshape_seq[winIdx] = sequence_number ;
- glViewport(0,0,width,height);
- glutPostRedisplay () ;
-}
-
-static void
-Position(int left, int top)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Position Callback: %d %d\n",
- ++sequence_number, window, left, top ) ;
- position_called[winIdx] = 1 ;
- position_left[winIdx] = left ;
- position_top[winIdx] = top ;
- position_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Key(unsigned char key, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Keyboard Callback: %d %d %d\n",
- ++sequence_number, window, key, x, y ) ;
- key_called[winIdx] = 1 ;
- key_key[winIdx] = key ;
- key_x[winIdx] = x ;
- key_y[winIdx] = y ;
- key_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Special(int key, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Special Key Callback: %d %d %d\n",
- ++sequence_number, window, key, x, y ) ;
- special_called[winIdx] = 1 ;
- special_key[winIdx] = key ;
- special_x[winIdx] = x ;
- special_y[winIdx] = y ;
- special_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Visibility(int vis)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Visibility Callback: %d\n",
- ++sequence_number, window, vis ) ;
- visibility_called[winIdx] = 1 ;
- visibility_vis[winIdx] = vis ;
- visibility_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-KeyUp(unsigned char key, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Key Release Callback: %d %d %d\n",
- ++sequence_number, window, key, x, y ) ;
- keyup_called[winIdx] = 1 ;
- keyup_key[winIdx] = key ;
- keyup_x[winIdx] = x ;
- keyup_y[winIdx] = y ;
- keyup_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-SpecialUp(int key, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Special Key Release Callback: %d %d %d\n",
- ++sequence_number, window, key, x, y ) ;
- specialup_called[winIdx] = 1 ;
- specialup_key[winIdx] = key ;
- specialup_x[winIdx] = x ;
- specialup_y[winIdx] = y ;
- specialup_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Joystick( unsigned int a, int b, int c, int d) /* Need meaningful names */
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Joystick Callback: %d %d %d %d\n",
- ++sequence_number, window, a, b, c, d ) ;
- joystick_called[winIdx] = 1 ;
- joystick_a[winIdx] = a ;
- joystick_b[winIdx] = b ;
- joystick_c[winIdx] = c ;
- joystick_d[winIdx] = d ;
- joystick_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Mouse(int button, int updown, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Mouse Click Callback: %d %d %d %d\n",
- ++sequence_number, window, button, updown, x, y ) ;
- mouse_called[winIdx] = 1 ;
- mouse_button[winIdx] = button ;
- mouse_updown[winIdx] = updown ;
- mouse_x[winIdx] = x ;
- mouse_y[winIdx] = y ;
- mouse_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-static void
-MouseWheel(int wheel_number, int direction, int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Mouse Wheel Callback: %d %d %d %d\n",
- ++sequence_number, window, wheel_number, direction, x, y ) ;
- mousewheel_called[winIdx] = 1 ;
- mousewheel_number[winIdx] = wheel_number ;
- mousewheel_direction[winIdx] = direction ;
- mousewheel_x[winIdx] = x ;
- mousewheel_y[winIdx] = y ;
- mousewheel_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Motion(int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Mouse Motion Callback: %d %d\n",
- ++sequence_number, window, x, y ) ;
- motion_called[winIdx] = 1 ;
- motion_x[winIdx] = x ;
- motion_y[winIdx] = y ;
- motion_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-PassiveMotion(int x, int y)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Mouse Passive Motion Callback: %d %d\n",
- ++sequence_number, window, x, y ) ;
- passivemotion_called[winIdx] = 1 ;
- passivemotion_x[winIdx] = x ;
- passivemotion_y[winIdx] = y ;
- passivemotion_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Entry(int state)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d Entry Callback: %d\n",
- ++sequence_number, window, state ) ;
- glutPostRedisplay () ;
-}
-
-static void
-Close(void)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d Close Callback\n",
- ++sequence_number, window ) ;
-}
-
-static void
-OverlayDisplay(void)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d OverlayDisplay Callback\n",
- ++sequence_number, window ) ;
- glutPostRedisplay () ;
-}
-
-static void
-WindowStatus(int state)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d WindowStatus Callback: %d\n",
- ++sequence_number, window, state ) ;
- glutPostRedisplay () ;
-}
-
-static void
-SpaceMotion(int x, int y, int z)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d SpaceMotion Callback: %d %d %d\n",
- ++sequence_number, window, x, y, z ) ;
- glutPostRedisplay () ;
-}
-
-static void
-SpaceRotation(int x, int y, int z)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d SpaceRotation Callback: %d %d %d\n",
- ++sequence_number, window, x, y, z ) ;
- glutPostRedisplay () ;
-}
-
-static void
-SpaceButton(int button, int updown)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d SpaceButton Callback: %d %d\n",
- ++sequence_number, window, button, updown ) ;
- glutPostRedisplay () ;
-}
-
-static void
-Dials(int x, int y)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d Dials Callback: %d %d\n",
- ++sequence_number, window, x, y ) ;
- glutPostRedisplay () ;
-}
-
-static void
-ButtonBox(int button, int updown)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d ButtonBox Callback: %d %d\n",
- ++sequence_number, window, button, updown ) ;
- glutPostRedisplay () ;
-}
+static int sequence_number=0;
-static void
-TabletMotion(int x, int y)
+static void Display(void)
{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d TabletMotion Callback: %d %d\n",
- ++sequence_number, window, x, y ) ;
- glutPostRedisplay () ;
+ int window=glutGetWindow();
+ printf ("%6d Window %d Display Callback\n",
+ ++sequence_number, window );
+ glClear ( GL_COLOR_BUFFER_BIT );
+ glutSwapBuffers();
}
-
-static void
-TabletButton(int button, int updown, int x, int y)
-{
- int window = getWindowAndIdx(NULL);
- printf ( "%6d Window %d TabletButton Callback: %d %d %d %d\n",
- ++sequence_number, window, button, updown, x, y ) ;
- glutPostRedisplay () ;
-}
-
-static void
-MenuCallback ( int value )
-{
- int menu = glutGetMenu();
- int window = getWindowAndIdx(NULL);
- printf( "%6d Menu %d MenuCallback for menu opened in Window %d - value is %d\n",
- ++sequence_number, menu, window, value );
-}
-
-static void
-MenuDestroy( void )
-{
- int menu = glutGetMenu();
- menudestroy_called = 1 ;
- printf ( "%6d Menu %d MenuDestroy Callback\n",
- ++sequence_number, menu ) ;
-}
-
-static void
-MenuStatus( int status, int x, int y )
+static void Entry(int state)
{
- /* Menu and window for which this event is triggered are current when the callback is called */
- int menu = glutGetMenu();
- int window = getWindowAndIdx(NULL);
- menustatus_called = 1 ;
- printf ( "%6d Menu %d MenuStatus Callback in Window %d: %d %d %d\n",
- ++sequence_number, menu, window, status, x, y ) ;
- glutPostRedisplay () ;
+ int window=glutGetWindow () ;
+ printf ("%6d Window %d Entry Callback: %d\n",
+ ++sequence_number, window, state);
}
-
-
-static void
-MenuState( int status )
+static void SampleMenu(int a)
{
- /* Menu and window for which this event is triggered are current when the callback is called */
- int menu = glutGetMenu();
- int window = getWindowAndIdx(NULL);
- menustate_called = 1 ;
- printf ( "%6d Menu %d MenuState Callback in Window %d: %d\n",
- ++sequence_number, menu, window, status) ;
- glutPostRedisplay () ;
+ printf("Menu clicked %d\n", a);
}
-
-static void Idle ( void )
+int main(int argc, char *argv[])
{
- ++sequence_number ;
-}
-
-int
-main(int argc, char *argv[])
-{
- char dummy_string[STRING_LENGTH];
-
- int menuID, subMenuA, subMenuB;
-
- glutInitWarningFunc(Warning);
- glutInitErrorFunc(Error);
- glutInitWindowSize(500, 250);
- glutInitWindowPosition ( 140, 140 );
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE );
- glutInit(&argc, argv);
- glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,GLUT_ACTION_CONTINUE_EXECUTION);
-
- /* Set other global callback (global as in not associated with any specific menu or window) */
- glutIdleFunc ( Idle );
- glutMenuStatusFunc ( MenuStatus );
- glutMenuStateFunc ( MenuState ); /* Note that glutMenuStatusFunc is an enhanced version of the deprecated glutMenuStateFunc. */
-
- windows[0] = glutCreateWindow( "Callback Demo" );
- printf ( "Creating window %d as 'Callback Demo'\n", windows[0] ) ;
-
- glClearColor(1.0, 1.0, 1.0, 1.0);
-
- /* callbacks and settings specific to this window */
- glutDisplayFunc( Display );
- glutReshapeFunc( Reshape );
- glutPositionFunc( Position );
- glutKeyboardFunc( Key );
- glutSpecialFunc( Special );
- glutVisibilityFunc( Visibility );
- glutKeyboardUpFunc( KeyUp );
- glutSpecialUpFunc( SpecialUp );
- glutJoystickFunc( Joystick, 100 );
- glutMouseFunc ( Mouse ) ;
- glutMouseWheelFunc ( MouseWheel ) ;
- glutMotionFunc ( Motion ) ;
- glutPassiveMotionFunc ( PassiveMotion ) ;
- glutEntryFunc ( Entry ) ;
- glutCloseFunc ( Close ) ;
- glutOverlayDisplayFunc ( OverlayDisplay ) ;
- glutWindowStatusFunc ( WindowStatus ) ;
- glutSpaceballMotionFunc ( SpaceMotion ) ;
- glutSpaceballRotateFunc ( SpaceRotation ) ;
- glutSpaceballButtonFunc ( SpaceButton ) ;
- glutButtonBoxFunc ( ButtonBox ) ;
- glutDialsFunc ( Dials ) ;
- glutTabletMotionFunc ( TabletMotion ) ;
- glutTabletButtonFunc ( TabletButton ) ;
- glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
-
- subMenuA = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Sub menu A1 (01)", 11 );
- glutAddMenuEntry( "Sub menu A2 (02)", 12 );
- glutAddMenuEntry( "Sub menu A3 (03)", 13 );
- glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
-
- subMenuB = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Sub menu B1 (04)", 14 );
- glutAddMenuEntry( "Sub menu B2 (05)", 15 );
- glutAddMenuEntry( "Sub menu B3 (06)", 16 );
- glutAddSubMenu( "Going to sub menu A", subMenuA );
- glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
-
- menuID = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Entry one", 21 );
- glutAddMenuEntry( "Entry two", 22 );
- glutAddMenuEntry( "Entry three", 23 );
- glutAddMenuEntry( "Entry four", 24 );
- glutAddMenuEntry( "Entry five", 25 );
- glutAddSubMenu( "Enter sub menu A", subMenuA );
- glutAddSubMenu( "Enter sub menu B", subMenuB );
- glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
-
- glutAttachMenu( GLUT_LEFT_BUTTON );
-
- glutInitWindowPosition ( 140+500+2*glutGet(GLUT_WINDOW_BORDER_WIDTH), 140 );
- /* Position second window right next to the first */
- windows[1] = glutCreateWindow( "Second Window" );
- printf ( "Creating window %d as 'Second Window'\n", windows[1] ) ;
-
- glClearColor(1.0, 1.0, 1.0, 1.0);
-
- /* callbacks and settings specific to this window */
- glutDisplayFunc( Display );
- glutReshapeFunc( Reshape );
- glutPositionFunc( Position );
- glutKeyboardFunc( Key );
- glutSpecialFunc( Special );
- glutVisibilityFunc( Visibility );
- glutKeyboardUpFunc( KeyUp );
- glutSpecialUpFunc( SpecialUp );
- /* glutJoystickFunc( Joystick, 100 ); */
- glutMouseFunc ( Mouse ) ;
- glutMouseWheelFunc ( MouseWheel ) ;
- glutMotionFunc ( Motion ) ;
- glutPassiveMotionFunc ( PassiveMotion ) ;
- glutEntryFunc ( Entry ) ;
- glutCloseFunc ( Close ) ;
- glutOverlayDisplayFunc ( OverlayDisplay ) ;
- glutWindowStatusFunc ( WindowStatus ) ;
- glutSpaceballMotionFunc ( SpaceMotion ) ;
- glutSpaceballRotateFunc ( SpaceRotation ) ;
- glutSpaceballButtonFunc ( SpaceButton ) ;
- glutButtonBoxFunc ( ButtonBox ) ;
- glutDialsFunc ( Dials ) ;
- glutTabletMotionFunc ( TabletMotion ) ;
- glutTabletButtonFunc ( TabletButton ) ;
- glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
-
- glutSetMenu(subMenuB);
- glutAttachMenu( GLUT_RIGHT_BUTTON );
-
-
- printf ( "Please enter something to continue: " );
- fgets ( dummy_string, STRING_LENGTH, stdin );
-
- glutMainLoop();
-
- printf ( "Back from the 'freeglut' main loop\n" ) ;
-
- return EXIT_SUCCESS;
+ int freeglut_window, menuID;
+ glutInitWindowSize(400, 250);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+ glutInit(&argc, argv);
+ freeglut_window=glutCreateWindow("INVOKE_WCB Issue");
+ printf("window created\n");
+ glClearColor(1.0, .0, 1.0, 1.0);
+ glutDisplayFunc(Display);
+ glutEntryFunc(Entry) ;
+ menuID=glutCreateMenu(SampleMenu);
+ glutAddMenuEntry("Entry one", 1);
+ glutAddMenuEntry("Entry two", 2);
+ glutAttachMenu(GLUT_RIGHT_BUTTON);
+ glutMainLoop();
+ return 0;
}
projects / freeglut / commitdiff