如何用C语言开发窗体应用程序。。
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:
include<windows.h>
#include<stdio.h>
LRESULT CALLBACK WinDouProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
);
class CWnd
{
public:
CWnd()
{
m_hWnd = NULL;
}
BOOL CreateEx(
DWORD dwExStyle, // extended window style
LPCTSTR lpClassName, // pointer to registered class name
LPCTSTR lpWindowName, // pointer to window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // handle to menu or child-window identifier
HANDLE hInstance, // handle to application instance
LPVOID lpParam // pointer to window-creation data
);
BOOL ShowWindow( int nCmdShow );
BOOL UpdateWindow();
public:
HWND m_hWnd;
};
BOOL CWnd::CreateEx(
DWORD dwExStyle, // extended window style
LPCTSTR lpClassName, // pointer to registered class name
LPCTSTR lpWindowName, // pointer to window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // handle to menu or child-window identifier
HANDLE hInstance, // handle to application instance
LPVOID lpParam // 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)
return TRUE;
else
return FALSE;
}
BOOL CWnd::ShowWindow(int nCmdShow)
{
return ::ShowWindow(m_hWnd,nCmdShow);
}
BOOL CWnd::UpdateWindow()
{
return ::UpdateWindow(m_hWnd);
}
int WINAPI WinMain(
HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPSTR lpCmdLine, // pointer to command line
int nCmdShow // 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
}
return 0;
}
LRESULT CALLBACK WinDouProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
switch(uMsg)
{
case WM_LBUTTONDOWN:
MessageBox(hwnd,"您按下了鼠标左键昂","豆豆的程序",MB_OK);
HDC hdc;
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;
case WM_CHAR:
char szChar[20];
sprintf(szChar,"Char is %d",wParam);
MessageBox(hwnd,szChar,"豆豆的程序",MB_OK);
break;
case WM_PAINT:
PAINTSTRUCT ps;
HDC hDc;
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;
case WM_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;
case WM_DESTROY:
PostQuitMessage(0);
//////////////////////////////////////////?????????????????????
break;
default:
return DefWindowProc(hwnd,uMsg,wParam,lParam); // 别忘记了return
}
return 0;
}
尽管C语言提供了许多低级处理的功能,但仍然保持着良好跨平台的特性,以一个标准规格写出的C语言程序可在许多电脑平台上进行编译,甚至包含一些嵌入式处理器(单片机或称MCU)以及超级电脑等作业平台。
#include <windows.h>
//Function prototype.
int WINAPI WinMain(HINSTANCE,HINSTANCE ,LPSTR ,int);
LRESULT CALLBACK MainWndProc(HWND ,UINT ,WPARAM,LPARAM);
InitApplication(HINSTANCE);
InitInstance(HINSTANCE,int);
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT nMsg,WPARAM wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(nMsg)
{
case WM_COMMAND:
{
hdc = GetDC((HWND)lParam);
GetClientRect ((HWND)lParam, &rect) ;
DrawText(hdc,"HOHO",-1,&rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
ReleaseDC((HWND)lParam,hdc);
}
break;
case WM_PAINT:
{
hdc = BeginPaint(hwnd,&ps);
GetClientRect (hwnd, &rect) ;
DrawText(hdc,"Hello Word",-1,&rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
EndPaint(hwnd,&ps);
}
break;
//按键
case WM_KEYDOWN:
if(wParam == VK_ESCAPE)
SendMessage(hwnd,WM_CLOSE,0,0);
break;
case WM_CHAR:
switch(wParam)
{
case 'w':
MessageBox(hwnd,"UP","KeyBorad Input",MB_OK);
break;
case 's':
MessageBox(hwnd,"DOWN","KeyBorad Input",MB_OK);
break;
case 'a':
MessageBox(hwnd,"LEFT","KeyBorad Input",MB_OK);
break;
case 'd':
MessageBox(hwnd,"RIGHT","KeyBorad Input",MB_OK);
break;
}
break;
//关闭
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd,nMsg,wParam,lParam);
}
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPreInStance,
LPSTR lpCmdLine,int nCmdShow)
{
MSG msg;
if(!InitApplication(hInstance))
{
MessageBox(NULL,"InitApplication Failed","Error!",MB_ICONEXCLAMATION | MB_OK);
return FALSE;
}
if(!InitInstance(hInstance,nCmdShow)){
MessageBox(NULL,"InitInstance Failed","Error!",MB_ICONEXCLAMATION | MB_OK);
return FALSE;
}
while(GetMessage(&msg,(HWND) NULL,0,0)>0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
InitApplication(HINSTANCE hInstance)
{
WNDCLASS wc;
wc.style = CS_DBLCLKS;
wc.lpfnWndProc = MainWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = "MainWClass";
return RegisterClass(&wc);
}
InitInstance(HINSTANCE hInstance,int nCmdShow){
HWND hwnd;
HWND hwndCloseButton;
hwnd = CreateWindow(
"MainWClass",
"Sample",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
(HWND)NULL,
(HMENU)NULL,
hInstance,
(LPVOID)NULL);
if(!hwnd)
return FALSE;
hwndCloseButton = CreateWindow(
"BUTTON",
"CLOSE",
WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,
100,
100,
100,
80,
hwnd,
(HMENU)NULL,
hInstance,
(LPVOID)NULL);
if(!hwndCloseButton)
return FALSE;
ShowWindow(hwnd,nCmdShow);
UpdateWindow(hwnd);
return TRUE;
}
调用别人的函数接口,立马做窗口程序。
可以看看 Windows 程序设计这本书(C语言),楼下那个根本就不知道接口是什么,C语言有微软提供的C语言图形函数库,调用之后就可以开发窗口程序
2013-07-18
linux下 用 QT
都是C++的类库