#include <windows.h>
#include <GL/Glut.h>
#include "resource.h"
HWND hpaintwnd = NULL;
HWND hcontrolwnd = NULL;
HWND hwnd = NULL; //主窗口句柄
HINSTANCE hInst;
static char lpszClassName[] = "MainWnd"; //窗口类名
static char lpszPaintClassName[] = "PaintWnd"; //绘制窗口类名
static char lpszControlClassName[] = "ControlWnd"; //控制窗口类名
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); //窗口函数说明
LRESULT CALLBACK WndPaintProc(HWND, UINT, WPARAM, LPARAM); //窗口函数说明
LRESULT CALLBACK WndControlProc(HWND, UINT, WPARAM, LPARAM); //窗口函数说明
int APIENTRY WinMain(HINSTANCE hInstance, //WinMain函数说明
HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
/*
建议采用Pascal的变量定义风格，即在程序（函数）开始处定义所有变量
虽然C++的变量定义比较灵活，本程序为了使程序易于理解,未采用这种方法
*/
//char lpszClassName[] = "MainWnd"; //窗口类名
char lpszTitle[] = "Win32窗口示例"; //窗口标题名
WNDCLASS wndclass,paintclass,controlclass;
HMENU hmenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_MENU1));
wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; //窗口类型为缺省类型
wndclass.lpfnWndProc = WndProc; //窗口处理函数为WndProc
wndclass.cbClsExtra = 0; //窗口类无扩展
wndclass.cbWndExtra = 0; //窗口实例无扩展
wndclass.hInstance = hInstance; //当前实例句柄
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); //使用缺省图标
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); //窗口采用箭头光标
wndclass.hbrBackground = NULL; //窗口背景为白色
wndclass.lpszMenuName = NULL; //窗口中无菜单
wndclass.lpszClassName = lpszClassName; //窗口类名为'窗口实例'
hInst = hInstance;
paintclass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; //窗口类型为缺省类型
paintclass.lpfnWndProc = WndPaintProc; //窗口处理函数为WndProc
paintclass.cbClsExtra = 0; //窗口类无扩展
paintclass.cbWndExtra = 0; //窗口实例无扩展
paintclass.hInstance = hInstance; //当前实例句柄
paintclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); //使用缺省图标
paintclass.hCursor = LoadCursor(NULL, IDC_ARROW); //窗口采用箭头光标
paintclass.hbrBackground = NULL; //窗口背景为白色
paintclass.lpszMenuName = NULL; //窗口中无菜单
paintclass.lpszClassName = lpszPaintClassName; //窗口类名为'窗口实例'
controlclass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; //窗口类型为缺省类型
controlclass.lpfnWndProc = WndControlProc; //窗口处理函数为WndProc
controlclass.cbClsExtra = 0; //窗口类无扩展
controlclass.cbWndExtra = 0; //窗口实例无扩展
controlclass.hInstance = hInstance; //当前实例句柄
controlclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); //使用缺省图标
controlclass.hCursor = LoadCursor(NULL, IDC_ARROW); //窗口采用箭头光标
controlclass.hbrBackground = NULL; //窗口背景为白色
controlclass.lpszMenuName = NULL; //窗口中无菜单
controlclass.lpszClassName = lpszControlClassName; //窗口类名为'窗口实例'
if (!RegisterClass(&wndclass)) //注册窗口，若失败，则发出声音
{
MessageBeep(0);
return FALSE;
}
if (!RegisterClass(&paintclass)) //注册窗口，若失败，则发出声音
{
MessageBeep(0);
return FALSE;
}
if (!RegisterClass(&controlclass)) //注册窗口，若失败，则发出声音
{
MessageBeep(0);
return FALSE;
}
//创建窗口操作
hwnd = CreateWindow(lpszClassName, //创建窗口，窗口类名
lpszTitle, //窗口实例的标题名
WS_OVERLAPPEDWINDOW, //窗口的风格
100,
50, //窗口左上角坐标为缺省值
800,
600, //窗口的高度和宽度为缺省值
NULL, //此窗口无父窗口
hmenu, //此窗口无主菜单
hInstance, //应用程序当前句柄
NULL); //不使用该值
ShowWindow(hwnd, nCmdShow); //显示窗口
UpdateWindow(hwnd); //绘制用户区
// int InitGL(GLvoid);
MSG msg; //消息结构
while (GetMessage(&msg, NULL, 0, 0)) //消息循环
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam; //程序终止时，将信息返回操作系统
}
void SetupPixelFormat(HDC hDC) //为设备环境设置像素格式
{
int nPixelFormat; //像素格式变量
static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), //数据结构大小
1, //版本号，总设为1
PFD_DRAW_TO_WINDOW | //支持窗口
PFD_SUPPORT_OPENGL | //支持OpenGL
PFD_DOUBLEBUFFER, //支持双缓存
PFD_TYPE_RGBA, //RGBA颜色模式
32, //32位颜色模式
0, 0, 0, 0, 0, 0, //忽略颜色为，不使用
0, //无alpha缓存
0, //忽略偏移位
0, //无累积缓存
0, 0, 0, 0, //忽略累积位
16, //16位z-buffer（z缓存）大小
0, //无模板缓存
0, //无辅助缓存
PFD_MAIN_PLANE, //主绘制平面
0, //保留的数据项
0, 0, 0 }; //忽略层面掩模
//选择最匹配的像素格式，返回索引值
nPixelFormat = ChoosePixelFormat(hDC, &pfd);
//设置环境设备的像素格式
SetPixelFormat(hDC, nPixelFormat, &pfd);
}
int InitGL(GLvoid) // 此处开始对OpenGL进行所有设置
{
glShadeModel(GL_SMOOTH); // 启用阴影平滑
glClearColor(1.0f, 0.0f, 0.0f, 0.0f); // 黑色背景
glClearDepth(1.0f); // 设置深度缓存
glEnable(GL_DEPTH_TEST); // 启用深度测试
glDepthFunc(GL_LEQUAL); // 所作深度测试的类型
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);// 告诉系统对透视进行修正
return TRUE; // 初始化 OK
}
void ChangeSize(int width, int height)
{
glViewport(0, 0, width, height); // 重置当前的视口glMatrixMode(GL_PROJECTION);
glMatrixMode(GL_PROJECTION); // 选择投影矩阵
glLoadIdentity(); // 重置投影矩阵
// 设置投影模式为透视投影
gluPerspective(45.0f, (GLfloat)width / (GLfloat)height, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void RenderScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //清屏和清除深度缓冲区
glLoadIdentity(); // 重置当前的模型观察矩阵
glTranslatef(-1.5f, 0.0f, -26.0f); // 左移 1.5 单位，并移入屏幕 6.0
glBegin(GL_TRIANGLES); // 绘制三角形
glVertex3f(0.0f, 1.0f, 0.0f); // 上顶点
glVertex3f(-1.0f, -1.0f, 0.0f); // 左下
glVertex3f(1.0f, -1.0f, 0.0f); // 右下
glEnd(); // 三角形绘制结束
glTranslatef(3.0f, 0.0f, 0.0f); // 右移3单位
glRotatef(45, 1, 1, 0);
glutWireCube(2);
//此处添加绘图命令
//glutSwapBuffers();
// glFlush();
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
static HGLRC hRC; //绘制环境
static HDC hDC; //设备环境
PAINTSTRUCT ps;
DWORD width, height;
width = LOWORD(lParam);
height = HIWORD(lParam);
switch (message) {
case WM_CREATE: {
//创建子窗口
hpaintwnd = CreateWindowEx(WS_EX_CLIENTEDGE,
lpszPaintClassName, NULL,
WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | ES_MULTILINE,
0, 0, 0, 0, hwnd, 0, hInst, 0
);
int err = GetLastError();
hcontrolwnd = CreateWindowEx(WS_EX_CLIENTEDGE,
lpszControlClassName, NULL,
WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | ES_MULTILINE,
0, 0, 0, 0, hwnd, 0, hInst, 0
);
err = GetLastError();
return 0;
}
break;
case WM_COMMAND:
{
// 取出资源Id值
// 并判断用户选择了哪个菜单项
switch (LOWORD(wParam))
{
case IDR_MENU1:
MessageBox(hwnd, "灰机来了。", "提示", MB_OK);
break;
default:
break;
}
}
break;
case WM_DESTROY:
{
// KillTimer(hwnd, 101);
PostQuitMessage(0); //调用该函数发出WM_QUIT消息
}
break;
case WM_SIZE:
{
MoveWindow(hpaintwnd, 0, 0, 4 * width / 5, height, true);
int err = GetLastError();
MoveWindow(hcontrolwnd, 4 * width / 5 , 0, width / 5, height, true);
}
break;
// case WM_TIMER:
// {
// //IdleFunction();
// InvalidateRect(hwnd, NULL, FALSE);
// }
// break;
case WM_PAINT:
{
ValidateRect(hwnd, NULL);
}
break;
// case
default: //缺省消息处理函数
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
//为毛该窗口不刷新？？？
LRESULT CALLBACK WndPaintProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HGLRC hRC; //绘制环境
static HDC hDC; //设备环境
PAINTSTRUCT ps;
switch (message) {
case WM_CREATE:
{
hDC = GetDC(hwnd); //得到当前窗口的设备环境
SetupPixelFormat(hDC); //调用像素格式设置函数
hRC = wglCreateContext(hDC); //创建OpenGL绘图环境并创建一个指向OpenGL绘制环境的句柄
wglMakeCurrent(hDC, hRC); //将传递过来的绘制环境设置为OpenGL将要进行绘制的当前绘制环境
// SetTimer(hwnd, 33, 1, NULL);
InitGL();
}
break;
case WM_DESTROY:
{
wglMakeCurrent(hDC, NULL);
wglDeleteContext(hRC);
PostQuitMessage(0); //调用该函数发出WM_QUIT消息
}
break;
case WM_SIZE:
{
ChangeSize(LOWORD(lParam), HIWORD(lParam));
}
break;
case WM_PAINT:
{
hDC = BeginPaint(hwnd, &ps);
EndPaint(hwnd, &ps);
RenderScene();
SwapBuffers(hDC);
ValidateRect(hwnd, NULL);
}
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
LRESULT CALLBACK WndControlProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hDC;
PAINTSTRUCT ps;
switch (message) {
case WM_DESTROY:
{
PostQuitMessage(0); //调用该函数发出WM_QUIT消息
}
break;
case WM_PAINT:
{
/*RECT rect;
GetClientRect(hwnd, &rect);
hDC = BeginPaint(hwnd, &ps);
char word[] = "helloworld";
TextOut(hDC, 10, 10, word, ARRAYSIZE(word));
EndPaint(hwnd, &ps);
int err = GetLastError();*/
ValidateRect(hwnd, NULL);
}
break;
default: //缺省消息处理函数
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
问题描述：在主窗口创建了两个子窗口，为什么右边那个窗口不刷新啊
