Rotating a Bézier Curve in OpenGL & Cpp

[prisma mortar]

Hi! I'm trying to create a Bézier curve and then move it and rotate it. I used glPushMatrix(); and glRotatef(M_PI/2, 0, 1, 0); but it doesn't seem to do anything.

[severe rapids]

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[prisma mortar]

#define _USE_MATH_DEFINES
#include <GL/glut.h>
#include <math.h>

void init(void){
    glClearColor(1, 1, 1, 1);
    glMatrixMode(GL_PROJECTION);
    gluOrtho2D(0, 1000, 0, 1000);
}

void BezierCurves(void){
    glClear(GL_COLOR_BUFFER_BIT);
    float ControlPoints[4][3] = {{100, 100, 0}, {200, 400, 0}, {300, 400, 0}, {400, 100, 0}};
    float dx = ControlPoints[4][1] - ControlPoints[1][1];
    float dy = ControlPoints[4][2] - ControlPoints[1][2];
    float m;
    bool vLine = false;
    
    if(dx != 0){
        m = dy/dx;
    }else   
        vLine = true;
    glPushMatrix();
    glTranslatef(500, 500, 0);
    glRotatef(M_PI/2, 0, 1, 0);
    glTranslatef(0, 0, 0);
    glMap1f(GL_MAP1_VERTEX_3, 0, 1, 3, 4, *ControlPoints);
    glEnable(GL_MAP1_VERTEX_3);
    glMapGrid1f(100, 0, 1);
    glColor3f(0, 0, 1);
    glEvalMesh1(GL_LINE, 0, 100);
    glDisable(GL_MAP1_VERTEX_3);
    glPopMatrix();
    glFlush();
}

int main(int argc, char** argv){
    glutInitWindowSize(1000, 1000);
    glutInit(&argc, argv);
    glutCreateWindow("Bézier Curves");
    init();
    glutDisplayFunc(BezierCurves);
    glutMainLoop();
}