Я пишу OpenGL с WinApi, но мой WinApi windows не видны

Question

Я использую коды OpenGL с использованием WinApi, но мои WinApi windows / кнопки / тексты не видны. Это можно увидеть под черным экраном / поверхностью. Точно так же он не появляется на кнопках. Короче говоря, я хочу использовать функции WinApi на поверхности OpenGL.

Можете ли вы исправить мой код?

Мои коды:

#include <windows.h>
#include <stdio.h>
#include <GL/gl.h>

WNDCLASS wc = {0}, otherClass = {0};
HWND window, otherWindow;
MSG msg;
HDC dc;
HGLRC rc;
bool quit = false;

LRESULT CALLBACK WndProc(HWND window, UINT msg, WPARAM wp, LPARAM lp) {
    switch (msg) {
        case WM_DESTROY:
            quit = true;
            PostQuitMessage(0);
                break;
        case WM_KEYDOWN:
            switch (wp) {
                case 27:
                    quit = true;
                    PostQuitMessage(0);
                        break;
            };
                break;
        default:
            return DefWindowProc(window, msg, wp, lp);
                break;
    };
    return DefWindowProc(window, msg, wp, lp);
};

LRESULT CALLBACK WndProcC(HWND window, UINT msg, WPARAM wp, LPARAM lp) {
    switch (msg) {
        default:
            return DefWindowProc(window, msg, wp, lp);
                break;
    };
    return DefWindowProc(window, msg, wp, lp);
};

int main() {
    wc.lpfnWndProc = WndProc;
    wc.hbrBackground = (HBRUSH) COLOR_WINDOW;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.lpszClassName = "wc";

    RegisterClass(&wc);

    otherClass = wc;
    otherClass.lpfnWndProc = WndProcC;
    otherClass.hbrBackground = (HBRUSH) GetStockObject(DKGRAY_BRUSH);
    otherClass.lpszClassName = "OtherClass";

    RegisterClass(&otherClass);

    window = CreateWindow("wc", "Window!", WS_OVERLAPPEDWINDOW,
                          100, 100, 512, 512,
                          NULL, NULL, NULL, NULL);
    ShowWindow(window, true);

    otherWindow = CreateWindow("OtherClass", "OtherWindow!", WS_CHILD | WS_OVERLAPPEDWINDOW,
                          100, 100, 256, 256,
                          window, NULL, NULL, NULL);
    ShowWindow(otherWindow, true);

    while (true) {
        int f;
        PIXELFORMATDESCRIPTOR pfd;
        ZeroMemory(&pfd, sizeof(pfd));
        pfd.nSize = sizeof(pfd);
        pfd.nVersion = 1;
        pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
        pfd.iPixelType = PFD_TYPE_RGBA;

        dc = GetDC(window);
        f = ChoosePixelFormat(dc, &pfd);
        SetPixelFormat(dc, f, &pfd);

        rc = wglCreateContext(dc);


        if (PeekMessage(&msg, NULL, 0, 0, 0x0001)) {
            if (msg.message == WM_QUIT || msg.message == WM_DESTROY) {
                break;
            }else {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
            };
        }else{
            wglMakeCurrent(dc, rc);
            glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
            glClear(GL_COLOR_BUFFER_BIT);

            // Draw

            SwapBuffers(dc);
        };

        wglMakeCurrent(NULL, NULL);
        wglDeleteContext(rc);
        ReleaseDC(window, dc);
    };

    return 0;
};