主要是通过调用Windows API界面的CreateWindows函数完成,同时也能创建按钮,把参数设置为button,如果想响应该按钮,只需在回调函数中增加消息WM_COMMAND判断即可.代码如下:
#include<windows.h>
#include<stdio.h>
//声明回调函数
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
//主函数 程序入口
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("HelloWin") ;
HWND hwnd ; //用来保存成功创建窗口后返回的句柄
MSG msg ; //定义消息结构体变量
WNDCLASS wndclass ; //窗体类
wndclass.style = CS_HREDRAW | CS_VREDRAW ; //指定窗口风格
wndclass.lpfnWndProc = WndProc ; ////函数指针，指向处理窗口消息的函数入口
wndclass.cbClsExtra = 0 ; //结构体后附加的字节数，一般总为0
wndclass.cbWndExtra = 0 ; //窗体实例附加的字节数，一般总为0
wndclass.hInstance = hInstance ; //模块句柄
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ; //图标句柄 任务栏显示的图标
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ; //光标句柄
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); //背景颜色COLOR_BACKGROUND
wndclass.lpszMenuName = NULL ; //菜单名的字符串
wndclass.lpszClassName = szAppName ; //自定义类名，不要与其他类名重复
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("注册类失败!"), szAppName, MB_ICONERROR) ;
return 0 ;
}
int x =((GetSystemMetrics(SM_CXSCREEN)/2)-200); //x居中
int y =((GetSystemMetrics(SM_CYSCREEN)/2)-200); //y居中
//创建窗体API
hwnd = CreateWindow(szAppName,TEXT("毕业设计"),WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX,x,y,400,400,NULL,NULL,hInstance,NULL);
//显示窗体的API 传入需要显示的窗体句柄和显示方式
ShowWindow(hwnd,iCmdShow);
//刷新窗体的API
UpdateWindow(hwnd);
//从系统的应用程序线程消息队列中取得一个消息
while(GetMessage(&msg,NULL,0,0) > 0)
{
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc; //句柄
PAINTSTRUCT ps;
RECT rect; //矩形
HINSTANCE hInstance; //窗口实例
static HWND hwndButton[2]; //按钮句柄
switch (message)
{
case WM_CREATE: //创建按钮
{
hInstance = ((LPCREATESTRUCT)lParam)->hInstance;
//按钮1
hwndButton[0] = CreateWindow("BUTTON","训练",
WS_TABSTOP | WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,
10,10,100,100,hwnd,NULL,
(HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE), NULL);
//按钮2
hwndButton[1] = CreateWindow("BUTTON","获取",
WS_TABSTOP | WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,
10,250,100,100,hwnd,NULL,
(HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE), NULL);
return 0;
}
case WM_PAINT: //绘制文字
hdc = BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
DrawText(hdc,TEXT("By:Eastmount CSDN制作"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
EndPaint(hwnd,&ps);
return 0;
case WM_COMMAND: //响应按钮消息
if((HWND)lParam == hwndButton[0])
{
MessageBox(NULL,TEXT("是否训练图片?"),TEXT("提示"),MB_YESNO|MB_ICONQUESTION);
}
if((HWND)lParam == hwndButton[1])
{
MessageBox(NULL,TEXT("是否获取图片?"),TEXT("提示"),MB_YESNO|MB_ICONQUESTION);
}
return 0;
case WM_CLOSE: //关闭
if(IDYES==MessageBox(hwnd,"是否关闭程序?","提示",MB_YESNO|MB_ICONQUESTION))
{
DestroyWindow (hwnd);
}
return 0;
case WM_DESTROY: //退出程序
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
程序运行结果如下图所示:其中主要涉及到的函数原型如下所示:
//创建窗体 hwnd = CreateWindow ( szClassName, /* Classname */ "Windows App", /* Title Text */ WS_OVERLAPPEDWINDOW, /* default window */ CW_USEDEFAULT, /* Windows decides the position */ CW_USEDEFAULT, /* where the window ends up on the screen */ 544, /* The programs width */ 375, /* and height in pixels */ HWND_DESKTOP, /* The window is a child-window to desktop */ NULL, /* No menu */ hThisInstance, /* Program Instance handler */ NULL /* No Window Creation data */ ); //创建按钮 hwndButton = CreateWindow( "BUTTON", // predefined class "OK", // button text WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON, // styles 10, // starting x position 10, // starting y position 100, // button width 100, // button height hwnd, // parent window NULL, // No menu (HINSTANCE) GetWindowLong(hwnd, GWL_HINSTANCE), NULL // pointer not needed );最后,写这篇文章主要是怀念自己大一时的生活,从一个什么都不知道的孩子,通过学习C语言,C语言能干大事开始接触编程.同时,我认为这个程序也是非常还的入门程序,希望刚接触程序的同学也可以看看,编编自己感兴趣的程序、写写博客、AC题目、编写游戏、聊天软件、移动开发,能从程序和生活中找到一些让自己心灵美妙的东西.
(By:Eastmount 2014-5-25 夜2点半 原创CSDNhttp://blog.csdn.net/eastmount/)