典型案例程序
// Win32消息.cpp : 定义应用程序的入口点。
#include "stdafx.h"
#include "WinMenu.h"
#include "stdio.h"
HINSTANCE g_hInstance = 0;//接收应用程序实例句柄
HANDLE g_hOutput = 0;
#define MAX_LOADSTRING 100
void OnPaint(HWND hWnd)
{
char *pszText = "WM_PAINT\n";
WriteConsole(g_hOutput, pszText, strlen(pszText), NULL, NULL);
}
//创建主窗口
HWND CreateMain(LPCSTR lpClassName, LPCSTR lpWndName)
{
HWND hWnd = CreateWindowEx(0, lpClassName, lpWndName,
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, g_hInstance, "hello data"
);
return hWnd;
}
//显示窗口
void Display(HWND hWnd)
{
ShowWindow(hWnd, SW_SHOW);
UpdateWindow(hWnd);
}
//消息循环
void Message()
{
MSG nMsg = { 0 };
while (GetMessage(&nMsg, NULL, 0, 0))
{
TranslateMessage(&nMsg);
DispatchMessage(&nMsg);
}
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_PAINT:
OnPaint(hWnd);
break;
case WM_DESTROY:
//PostQuitMessage(0);
SendMessage(hWnd, WM_QUIT, 0, 0);
break;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);//该函数是默认处理函数，如果没有上面自己定义的消息，其他消息就会被该函数默认处理
}
void Register(LPSTR lpClassName, WNDPROC wndproc)
{
WNDCLASSEX wce = { 0 };
wce.cbSize = sizeof(wce);
wce.cbClsExtra = 0;
wce.cbWndExtra = 0;
wce.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wce.hCursor = NULL;
wce.hIcon = NULL;
wce.hIconSm = NULL;
wce.hInstance = g_hInstance;
wce.lpfnWndProc = wndproc;//窗口处理函数
wce.lpszClassName = lpClassName;
wce.lpszMenuName = NULL;
wce.style = CS_HREDRAW | CS_VREDRAW;
RegisterClassEx(&wce);
}
int WINAPI WinMain(HINSTANCE hIns, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
AllocConsole();//增加一个附带的DOS窗口
g_hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
g_hInstance = hIns;
Register(_T("Main"), WndProc);
HWND hWnd = CreateMain(_T("Main"), _T("window"));
Display(hWnd);
Message();
return 0;
}
典型案例程序二
#include "stdafx.h"
#include "WinHello.h"
//处理窗口绘制消息(WM_PAINT)
void OnPaint(HWND hWnd)
{
PAINTSTRUCT ps;//获取设备上下文句柄
HDC hDC = BeginPaint(hWnd, &ps);
RECT rcClient;//获取窗口客户区矩形
GetClientRect(hWnd, &rcClient);
//在窗口客户区内显示文本
DrawText(hDC, _T("hello world"), -1, &rcClient, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
EndPaint(hWnd, &ps);//释放设备上下文
}
//主窗口过程函数
LRESULT CALLBACK MainWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
//对不同的消息做不同的处理
switch (uMsg)
{
case WM_PAINT://窗口绘制消息
OnPaint(hWnd);
return 0;
case WM_DESTROY://窗口销毁消息
PostQuitMessage(0);//发送WM_QUIT消息
return 0;
}
//对不感兴趣的消息交给缺省窗口过程函数处理
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
//注册窗口类
ATOM InitApplication(HINSTANCE hInstance)
{
WNDCLASS wc = { 0 };
wc.style = CS_HREDRAW | CS_VREDRAW; //窗口类风格
wc.lpfnWndProc = MainWndProc;//窗口过程函数指针
wc.cbClsExtra = 0;//窗口类附加数据字节数
wc.cbWndExtra = 0;//窗口附加数据字节数
wc.hInstance = hInstance;//应用程序实例句柄
wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);//窗口图标句柄
wc.hCursor = LoadCursor(NULL, IDC_ARROW);//窗口光标句柄
wc.hbrBackground = GetSysColorBrush(COLOR_WINDOW);//窗口背景句柄
wc.lpszMenuName = NULL;//窗口菜单资源名
wc.lpszClassName = _T("MAIN");//窗口类型
return RegisterClass(&wc);//将wc结构存入内核
}
//创建、显示、并刷新窗口
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
//创建窗口
HWND hWnd=CreateWindow(
_T("MAIN"),//窗口类名
_T("WinHello"),//窗口标题
WS_OVERLAPPEDWINDOW,//窗口风格
CW_USEDEFAULT,//窗口左上角水平坐标
CW_USEDEFAULT,//窗口左上角垂直坐标
CW_USEDEFAULT,//窗口宽度
CW_USEDEFAULT,//窗口高度
NULL,//父窗口句柄
NULL,//菜单句柄
hInstance,//应用，程序实例句柄
NULL//额外数据
);
if (!hWnd)
{
return FALSE;
}
//显示窗口
ShowWindow(hWnd, nCmdShow);
//刷新窗口
UpdateWindow(hWnd);
return TRUE;
}
int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
//注册窗口类
if (!InitApplication(hInstance))
{
return 0;
}
//创建、显示并刷新窗口
if (!InitInstance(hInstance, nCmdShow))
{
return 0;
}
//消息泵（消息循环）
MSG msg = { 0 };
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);//翻译消息（处理大小写锁、shift键 是否打开）
DispatchMessage(&msg);//派发消息
}
return 0;
return 0;
}
创建编辑窗口，向DOS窗口输出内容
// WinHello.cpp : 定义应用程序的入口点。
//
#include "stdafx.h"
#include "Win32Project1.h"
#include "stdio.h"
HINSTANCE g_hInstance = 0;//接收应用程序实例句柄
HANDLE g_hOutput = 0;//接收标准输出句柄
HWND g_hEdit = 0;
void OnCreate(HWND hWnd, LPARAM lParam)
{
CREATESTRUCT *pcs = (CREATESTRUCT*)lParam;
char * pszText = (char*)pcs->lpCreateParams;
//MessageBox(hWnd,pszText,"Infor",MB_OK);
g_hEdit=CreateWindowEx(WS_EX_CLIENTEDGE, _T("EDIT"), _T("HELLO"),
WS_CHILD | WS_VISIBLE | WS_BORDER,
0, 0, 200, 200, hWnd, NULL,
g_hInstance,
NULL
);
}
void OnSize(HWND hWnd, LPARAM lParam)
{
int nWidth = LOWORD(lParam);
int nHeight = HIWORD(lParam);
char szText[256] = { 0 };
sprintf(szText, "宽：%d，高：%d\n", nWidth, nHeight);
WriteConsole(g_hOutput, szText, strlen(szText), NULL, NULL);
MoveWindow(g_hEdit, 0, 0, nWidth, nHeight, TRUE);
}
//处理窗口绘制消息(WM_PAINT)
void OnPaint(HWND hWnd)
{
PAINTSTRUCT ps;//获取设备上下文句柄
HDC hDC = BeginPaint(hWnd, &ps);
RECT rcClient;//获取窗口客户区矩形
GetClientRect(hWnd, &rcClient);
//在窗口客户区内显示文本
DrawText(hDC, _T("hello world"), -1, &rcClient, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
EndPaint(hWnd, &ps);//释放设备上下文
}
HWND CreateMain(LPCTSTR lpClassName,LPCTSTR lpWndName)
{
HWND hWnd = CreateWindowEx(0, lpClassName, lpWndName,
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, g_hInstance, _T("hello data")
);
return hWnd;
}
//显示窗口
void Display(HWND hWnd)
{
ShowWindow(hWnd, SW_SHOW);
UpdateWindow(hWnd);
}
//消息循环
void Message()
{
MSG nMsg = { 0 };
while (GetMessage(&nMsg, NULL, 0, 0))
{
TranslateMessage(&nMsg);
DispatchMessage(&nMsg);
}
}
//主窗口过程函数
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
//对不同的消息做不同的处理
switch (uMsg)
{
case WM_SIZE:
OnSize(hWnd,lParam);
break;
case WM_CREATE://窗口绘制消息
OnCreate(hWnd,lParam);
break;
case WM_SYSCOMMAND:
if (wParam == SC_CLOSE)
{
int nRet = MessageBox(hWnd, _T("是否退出"), _T("Infor"), MB_YESNO);
if (nRet == IDYES)
{
}
else
{
return 0;
}
}
break;
case WM_DESTROY://窗口销毁消息
PostQuitMessage(0);//发送WM_QUIT消息
break;
}
//对不感兴趣的消息交给缺省窗口过程函数处理
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
//注册窗口类
void Register(LPCTSTR lpClassName, WNDPROC wndproc)
{
WNDCLASSEX wce = { 0 };
wce.cbSize = sizeof(wce);
wce.cbClsExtra = 0;
wce.cbWndExtra = 0;
wce.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wce.hCursor = NULL;
wce.hIcon = NULL;
wce.hIconSm = NULL;
wce.hInstance = g_hInstance;
wce.lpfnWndProc = wndproc;
wce.lpszClassName = lpClassName;
wce.lpszMenuName = NULL;
wce.style = CS_HREDRAW | CS_VREDRAW;
RegisterClassEx(&wce);
}
int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
AllocConsole();//添加DOS窗口，用cmd窗口输出创建的窗口信息
g_hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
g_hInstance = hInstance;
Register(_T("Main"), WndProc);
HWND hWnd = CreateMain(_T("Main"), _T("window"));//创建窗口
Display(hWnd);//显示窗口
Message();//消息循环
return 0;
}
