第一课.创建窗体类及窗体,窗体过程函数

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//以下为cc.c源代码

#include <windows.h>
#include <stdio.h>

LRESULT CALLBACK WinCCProc(HWND hwnd, //窗体句柄
         UINT uMsg, //消息标识
         WPARAM wParam,
         LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{

//设计窗口类
WNDCLASS wndcls;
wndcls.cbClsExtra=0;
wndcls.cbWndExtra=0;
wndcls.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
wndcls.hCursor=LoadCursor(NULL,IDC_CROSS);
wndcls.hIcon=LoadIcon(NULL,IDI_ERROR);
wndcls.hInstance=hInstance;
wndcls.lpfnWndProc=WinCCProc;
wndcls.lpszClassName="chanchaw的窗体类";
wndcls.lpszMenuName=NULL;
wndcls.style=CS_HREDRAW | CS_VREDRAW;
RegisterClass(&wndcls);

//创建窗口
HWND cc_hwnd;
//char cc_char[5];
cc_hwnd=CreateWindow("chanchaw的窗体类","http://www.sunxin.org",
WS_OVERLAPPEDWINDOW,0,0,600,400,NULL,NULL,hInstance,NULL);

//cc_char="陈超";
MessageBox(cc_hwnd,"不管怎样,先出来再说吧!","又是个标题栏",0);
//MessageBox(cc_hwnd,"创建窗体返回的句柄是:" && "速度","标题栏",0);

//显示及刷新窗口
ShowWindow(cc_hwnd,SW_SHOWNORMAL);
UpdateWindow(cc_hwnd);

//定义消息结构体,开始消息循环
MSG cc_msg;
BOOL cc_bool;

/*
while(cc_bool=GetMessage(&cc_msg,cc_hwnd,0,0)!=0)
{

  if (cc_bool==-1)
  {
   MessageBox(cc_hwnd,"点我是确定","这里是标题栏吧!",0);
   return -1;
  }
  else
  {
   TranslateMessage(&cc_msg);
   DispatchMessage(&cc_msg);
  }

}
*/

while(GetMessage(&cc_msg,NULL,0,0))
{
TranslateMessage(&cc_msg);
DispatchMessage(&cc_msg);
}

return cc_msg.wParam;

}

//编写窗口过程函数
LRESULT CALLBACK WinCCProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
switch(uMsg)
{
case WM_CHAR:
  char cc_Char[20];
  sprintf(cc_Char,"char code is %d",wParam);
  MessageBox(hwnd,cc_Char,"char",0);
  break;

case WM_LBUTTONDOWN:
  MessageBox(hwnd,"mouse is clicked","message",0);
  HDC cc_hdc;
  cc_hdc=GetDC(hwnd);
  TextOut(cc_hdc,0,50,"程序员之家",strlen("程序员之家"));
  ReleaseDC(hwnd,cc_hdc);
  break;

case WM_PAINT:
  HDC hdc;
  PAINTSTRUCT ps;
  hdc=BeginPaint(hwnd,&ps);
  TextOut(hdc,0,0,"http://www.sunxin.org",strlen("http://www.sunxin.org"));
  EndPaint(hwnd,&ps);
  break;

case WM_CLOSE:
  if(IDYES==MessageBox(hwnd,"是否真的结束?","message",MB_YESNO))
  {
    DestroyWindow(hwnd);
  }
  break;

case WM_DESTROY:
PostQuitMessage(0);
break;

default:
return DefWindowProc(hwnd,uMsg,wParam,lParam);
}
return 0;
}

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