Windows窗口框架（API入门一）
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C语言程序设计 | 发表日期:2010-12-23 14:43:22
#include
#include
#include
//声明函数
//////////////////////////////////////////////////////////////////
long WINAPI WndProc //消息处理函数
(
HWND hWnd,
UINT iMessage,
UINT wParam,
LONG lParam
);
BOOL InitWindowsClass(HINSTANCE hInstance); //初始化窗口类
BOOL InitWindows(HINSTANCE hInstance, int nCmdShow);//初始化窗口
///////////////////////////////////////////////////////////////////
HWND hWndMain;
int WINAPI WinMain ( //主函数
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;
}
//定义函数
///////////////////////////////////////////////////////////////////
long WINAPI WndProc(
HWND hWnd,
UINT iMessage,
UINT wParam,
LONG lParam
)
{
HDC hDC;
HBRUSH hBrush;
HPEN hPen;
PAINTSTRUCT PtStr;
POINT points[6]={{100,212},{70,227},{70,250},{130,250},{130,227},{100,212}};
switch(iMessage)
{
case WM_PAINT:
hDC=BeginPaint(hWnd,&PtStr);
hPen=(HPEN)GetStockObject(NULL_PEN);
SelectObject(hDC,hPen);
hBrush=(HBRUSH)GetStockObject(BLACK_BRUSH);
SelectObject(hDC,hBrush);
LineTo(hDC,50,50);
DeleteObject(hPen);
hPen=CreatePen(PS_SOLID,2,RGB(255,0,0));
SelectObject(hDC,hPen);
LineTo(hDC,150,50);
LineTo(hDC,100,137);
LineTo(hDC,50,50);
Polyline(hDC,points,6);
Arc(hDC,63,137,138,212,100,137,100,137);
Pie(hDC,213,137,288,212,240,137,260,137);
Rectangle(hDC,213,212,287,250);
RoundRect(hDC,213,100,287,137,20,20);
DeleteObject(hPen);
DeleteObject(hBrush);
EndPaint(hWnd,&PtStr);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
default:
return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}
}
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow)
{
HWND hWnd;
hWnd=CreateWindow("WinFill", //窗口类名
"填充示例", //窗口实例的标题名
WS_OVERLAPPEDWINDOW, //窗口风格
CW_USEDEFAULT, //窗口左上角坐标为默认值
0,
CW_USEDEFAULT, //窗口的高为默认值
0, //宽
NULL, //无父窗口
NULL, //无主菜单
hInstance, //创建此窗口的应用程序的当前句柄
NULL //不使用该值
);
if(!hWnd)
return FALSE;
// hWndMain=hWnd;
ShowWindow(hWnd,nCmdShow); //显示窗口
UpdateWindow(hWnd); //绘制用户区
return TRUE;
}
BOOL InitWindowsClass(HINSTANCE hInstance)
{
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="WinFill";
WndClass.lpszMenuName=NULL;
WndClass.style=CS_HREDRAW|CS_VREDRAW;
return RegisterClass(&WndClass);
}
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