Win32学习笔记——win32主框架_win32程序主框架-优快云博客

本文链接：https://blog.youkuaiyun.com/jesse1013000/article/details/1334695

本文介绍了使用Win32 API进行Windows应用程序开发的基础知识，包括窗口类注册、窗口创建及消息循环处理过程。通过示例代码展示了如何实现一个简单的带有菜单的窗口应用程序。

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win32主框架：
定义窗口类（RegisterClass(…)）——>初始化窗口（CreateWindow(…)）——>消息循环
注意：在执行CreateWindow(…)和消息循环中都会隐式调用窗口进程WndProc(…)，
所以WndProc(…)书写不正确，也会引起CreateWindow(…)失败
#include <windows.h>
#include <stdlib.h>
#include <string.h>

HWND hWnd;
char lpszClassName[]="窗口类";
char lpszTitle[]="窗口";
//窗口进程声明
long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam);

//定义窗口类
BOOL InitWindowsClass(HINSTANCE hInstance);

//初始化窗口
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);

//主函数
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
MSG Message;
if(!InitWindowsClass(hInstance)) return FALSE;
if(!InitWindows(hInstance,nCmdShow)) return FALSE;
while(GetMessage(&Message,0,0,0)) //消息循环
{
TranslateMessage(&Message);
DispatchMessage(&Message);
}
return Message.wParam;
}

long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam)
{
switch(iMessage) //处理消息
{
case WM_DESTROY: //结束应用程序
  PostQuitMessage(0);
  break;
default://其他消息处理程序
  return (DefWindowProc(hWnd,iMessage,wParam,lParam)) ;
}
return 0;
}

BOOL InitWindows(HINSTANCE hInstance,int nCmdShow) //初始化窗口
{
hWnd=CreateWindow(lpszClassName, //生成窗口
lpszTitle,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
0,
CW_USEDEFAULT,
0,
NULL,
NULL,
hInstance,
NULL);
if(!hWnd)
  return FALSE;
ShowWindow(hWnd,nCmdShow); //显示窗口
UpdateWindow(hWnd);
return TRUE;
}

BOOL InitWindowsClass(HINSTANCE hInstance) //定义窗口类
{
WNDCLASS WndClass;
WndClass.cbClsExtra=0;
WndClass.cbWndExtra=0;
WndClass.hbrBackground=(HBRUSH)(GetStockObject(WHITE_BRUSH));
WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
WndClass.hIcon=LoadIcon(NULL,"END");
WndClass.hInstance=hInstance;
WndClass.lpfnWndProc=WndProc;
WndClass.lpszClassName=lpszClassName;
WndClass.lpszMenuName=NULL;
WndClass.style=CS_HREDRAW|CS_VREDRAW;
return RegisterClass(&WndClass);
}

//------------------------------------------------------------------------------------------------------------------------------------------------

//win32主框架_带菜单

#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include "resource.h"

HWND hWnd;
HACCEL hAccel;
char lpszMenuName[]="Menu";
char lpszAccelName[]="Accel";
char lpszClassName[]="菜单";
char lpszTitle[]="My_Menu_Example";

//窗口进程声明
long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam);

//定义窗口类
BOOL InitWindowsClass(HINSTANCE hInstance);

//初始化窗口
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);

//主函数
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
MSG Message;
if(!InitWindowsClass(hInstance)) return FALSE;
if(!InitWindows(hInstance,nCmdShow)) return FALSE;
hAccel=LoadAccelerators(hInstance,lpszAccelName);
while(GetMessage(&Message,0,0,0)) //消息循环
{
  if (!TranslateAccelerator(hWnd,hAccel,&Message))
  {
   TranslateMessage(&Message);
   DispatchMessage(&Message);
  }
}
return Message.wParam;
}

BOOL InitWindowsClass(HINSTANCE hInstance) //定义窗口类
{
WNDCLASS WndClass;
WndClass.cbClsExtra=0;
WndClass.cbWndExtra=0;
WndClass.hbrBackground=(HBRUSH)(GetStockObject(WHITE_BRUSH));
WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
WndClass.hIcon=LoadIcon(NULL,"END");
WndClass.hInstance=hInstance;
WndClass.lpfnWndProc=WndProc;
WndClass.lpszClassName=lpszClassName;
WndClass.lpszMenuName=lpszMenuName;
WndClass.style=CS_HREDRAW|CS_VREDRAW;
return RegisterClass(&WndClass);
}