12 inline void clear() {glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);}
    13 #define RGBcolor(r,g,b) glColor3ub(r,g,b)    14 #define bgnline() glBegin(GL_LINE_STRIP)    15 #define bgnpolygon() glBegin(GL_POLYGON)    16 #define bgnclosedline() glBegin(GL_LINE_LOOP)    17 #define endline() glEnd()    18 #define endpolygon() glEnd()    19 #define endclosedline() glEnd()    20 #define v2f(v) glVertex2fv(v)    21 #define v2s(v) glVertex2sv(v)    22 #define cmov(x,y,z) glRasterPos3f(x,y,z)    23 #define charstr(s) gl_draw(s)    24 #define fmprstr(s) gl_draw(s)    25 typedef float Matrix[4][4];
    26 inline void pushmatrix() {glPushMatrix();}
    27 inline void popmatrix() {glPopMatrix();}
    28 inline void multmatrix(Matrix m) {glMultMatrixf((
float *)m);}
    29 inline void color(
int n) {glIndexi(n);}
    30 inline void rect(
int x,
int y,
int r,
int t) {
gl_rect(x,y,r-x,t-y);}
    31 inline void rectf(
int x,
int y,
int r,
int t) {glRectf(x,y,r+1,t+1);}
    32 inline void recti(
int x,
int y,
int r,
int t) {
gl_rect(x,y,r-x,t-y);}
    33 inline void rectfi(
int x,
int y,
int r,
int t) {glRecti(x,y,r+1,t+1);}
    34 inline void rects(
int x,
int y,
int r,
int t) {
gl_rect(x,y,r-x,t-y);}
    35 inline void rectfs(
int x,
int y,
int r,
int t) {glRects(x,y,r+1,t+1);}
 FL_EXPORT void gl_rect(int x, int y, int w, int h)
Outlines the given rectangle with the current color. 
Definition: gl_draw.cxx:286
This file defines wrapper functions for OpenGL in FLTK.