3 回答
TA贡献1898条经验 获得超8个赞
一般使用API函数生成SDK窗体的顺序是这样的
首先包含<windows.h>
再定义一个Win32窗体程序的消息处理函数
如:LRESULT CALLBACK WinSunProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
在int WINAPI WinMain()主函数中
1.设计窗体类
定义一个WIN32的窗体类结构 WNDCLASSEXA并填充数据
2.注册窗体类
将设计好的WIN32窗体结构类进行注册
可以使用RegisterClassExA函数
3.创建窗体获取窗体句柄
使用CreatWindow函数创建窗体 并返回窗体的句柄
4.更新窗体
创建一个消息循环截获相关消息GetMessage
并把消息推送给窗体TranslateMessage()DispatchMessage()
接下来就是消息处理函数的认为了
可以使用默认 DefWindowProc()处理
TA贡献2065条经验 获得超14个赞
生产窗体可以使用CreateWindowEx函数。
函数功能:该函数创建一个具有扩展风格的层叠式窗口、弹出式窗口或子窗口,其他与CreateWindow函数相同。
函数原型:
CreateWindowEx函数创建一个层叠的,自动弹出的(pop-up)或是一个子窗口通过扩展格式。另外这个函数的作用与CreateWindow函数的作用相同。要获得更多的关于创建窗口的信息和关于CreateWindowEx函数参数的详细描述。参见CreateWindow
HWND CreateWindowEx(
DWOR DdwExStyle, //窗口的扩展风格
LPCTSTR lpClassName, //指向注册类名的指针
LPCTSTR lpWindowName, //指向窗口名称的指针
DWORD dwStyle, //窗口风格
int x, //窗口的水平位置
int y, //窗口的垂直位置
int nWidth, //窗口的宽度
int nHeight, //窗口的高度
HWND hWndParent, //父窗口的句柄
HMENU hMenu, //菜单的句柄或是子窗口的标识符
HINSTANCE hInstance, //应用程序实例的句柄
LPVOID lpParam //指向窗口的创建数据
);例程:
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148 include<windows.h>#include<stdio.h>LRESULTCALLBACK WinDouProc(HWNDhwnd,// handle to windowUINTuMsg,// message identifierWPARAMwParam,// first message parameterLPARAMlParam// second message parameter);classCWnd{public:CWnd(){m_hWnd = NULL;}BOOLCreateEx(DWORDdwExStyle,// extended window styleLPCTSTRlpClassName,// pointer to registered class nameLPCTSTRlpWindowName,// pointer to window nameDWORDdwStyle,// window styleintx,// horizontal position of windowinty,// vertical position of windowintnWidth,// window widthintnHeight,// window heightHWNDhWndParent,// handle to parent or owner windowHMENUhMenu,// handle to menu or child-window identifierHANDLEhInstance,// handle to application instanceLPVOIDlpParam// pointer to window-creation data);BOOLShowWindow(intnCmdShow );BOOLUpdateWindow();public:HWNDm_hWnd;};BOOLCWnd::CreateEx(DWORDdwExStyle,// extended window styleLPCTSTRlpClassName,// pointer to registered class nameLPCTSTRlpWindowName,// pointer to window nameDWORDdwStyle,// window styleintx,// horizontal position of windowinty,// vertical position of windowintnWidth,// window widthintnHeight,// window heightHWNDhWndParent,// handle to parent or owner windowHMENUhMenu,// handle to menu or child-window identifierHANDLEhInstance,// handle to application instanceLPVOIDlpParam// pointer to window-creation data){m_hWnd = ::CreateWindowEx (dwExStyle,lpClassName,lpWindowName,dwStyle,x,y,nWidth,nHeight,hWndParent,hMenu,(HINSTANCE)hInstance,lpParam);if(m_hWnd != NULL)returnTRUE;elsereturnFALSE;}BOOLCWnd::ShowWindow(intnCmdShow){return::ShowWindow(m_hWnd,nCmdShow);}BOOLCWnd::UpdateWindow(){return::UpdateWindow(m_hWnd);}intWINAPI WinMain(HINSTANCEhInstance,// handle to current instanceHINSTANCEhPrevInstance,// handle to previous instanceLPSTRlpCmdLine,// pointer to command lineintnCmdShow// show state of window){WNDCLASS wndclass;//先设计窗口类wndclass.cbClsExtra = 0;wndclass.cbWndExtra = 0;wndclass.hbrBackground = (HBRUSH)GetStockObject(DKGRAY_BRUSH);wndclass.hCursor = LoadCursor(NULL,IDC_HELP);wndclass.hIcon = LoadIcon(NULL,IDI_WARNING);wndclass.hInstance = hInstance;wndclass.lpfnWndProc = WinDouProc;wndclass.lpszClassName ="Magic_Maggie";wndclass.lpszMenuName = 0;wndclass.style = CS_VREDRAW | CS_HREDRAW;//某一个变量原油几个变量去掉一个特征,可以用取反(~)后再进行与(&)//例如:style上去掉CS_NOCLOSE,可以style&~CS_NOCLOSE;RegisterClass(&wndclass);///注意先建立再注册昂CWnd wnd;wnd.CreateEx(NULL,"Magic_Maggie","DouDou",WS_OVERLAPPEDWINDOW,0,0,800,600,NULL,NULL,hInstance,NULL);wnd.ShowWindow(SW_SHOWNORMAL);wnd.UpdateWindow();MSG msg;//消息循环while(GetMessage(&msg,NULL,0,0)){TranslateMessage(&msg);DispatchMessage(&msg);//触发WinDouProc}return0;}LRESULTCALLBACK WinDouProc(HWNDhwnd,// handle to windowUINTuMsg,// message identifierWPARAMwParam,// first message parameterLPARAMlParam// second message parameter){switch(uMsg){caseWM_LBUTTONDOWN:MessageBox(hwnd,"您按下了鼠标左键昂","豆豆的程序",MB_OK);HDChdc;hdc = GetDC(hwnd);//The GetDC function retrieves a handle to a display device context for the client area of a specified window or for the entire screen. You can use the returned handle in subsequent GDI functions to draw in the device context.TextOut(hdc,0,0,"感谢您对豆豆程序的支持昂",strlen("感谢您对豆豆程序的支持昂"));ReleaseDC(hwnd,hdc);break;caseWM_CHAR:charszChar[20];sprintf(szChar,"Char is %d",wParam);MessageBox(hwnd,szChar,"豆豆的程序",MB_OK);break;caseWM_PAINT:PAINTSTRUCT ps;HDChDc;hDc = BeginPaint(hwnd,&ps);TextOut(hDc,0,0,"这个是重绘滴哦",strlen("这个是重绘滴哦"));EndPaint(hwnd,&ps);break;caseWM_CLOSE://这个case与下边的destroy这个case不要弄错了,否则窗口不出现,但任务管理器中运行if(IDYES == MessageBox(hwnd,"您真的要退出么?","豆豆的程序",MB_YESNO)){DestroyWindow(hwnd);}break;caseWM_DESTROY:PostQuitMessage(0);//////////////////////////////////////////?????????????????????break;default:returnDefWindowProc(hwnd,uMsg,wParam,lParam);// 别忘记了return}return0;}
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