helloworld.c

C#一个实例源代码

/*-----------------------------------------------------------------------------------------------------------
  HelloWorld.c
------------------------------------------------------------------------------------------------------------*/

#include <windows.h>
#include"resource.h"


LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
LRESULT CALLBACK NewWndProc (HWND, UINT, WPARAM, LPARAM);
DWORD WINAPI Thread1(LPVOID param);
DWORD WINAPI Thread2(LPVOID param);
DWORD WINAPI Thread3(LPVOID param);
DWORD WINAPI Thread4(LPVOID param);
HANDLE hThread;
HANDLE hSecondWnd;//句柄

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
     static TCHAR szAppName[] = TEXT ("HelloWorld") ;
     HWND         hwnd ;
     MSG          msg ;
     WNDCLASS     wndclass ;
	 HMENU        hMenu;

     wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
     wndclass.lpfnWndProc   = WndProc ;
     wndclass.cbClsExtra    = 0 ;
     wndclass.cbWndExtra    = 0 ;
     wndclass.hInstance     = hInstance ;
     wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
     wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
     wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
     wndclass.lpszMenuName  = NULL ;
     wndclass.lpszClassName = szAppName ;

     if (!RegisterClass (&wndclass))
     {
          MessageBox (NULL, TEXT ("This program requires Windows NT!"), 
                      szAppName, MB_ICONERROR) ;
          return 0 ;
     }
	 hMenu=LoadMenu(hInstance,szAppName );
     
     hwnd = CreateWindow (
		                   szAppName,                 
                          TEXT ("Hello World!"),  
                          WS_OVERLAPPEDWINDOW
                          |WS_HSCROLL|WS_VSCROLL,
     
                          CW_USEDEFAULT,               
                          CW_USEDEFAULT,             
                          CW_USEDEFAULT,              
                          CW_USEDEFAULT,               
                          NULL,                       
                          hMenu,                       
                          hInstance,                  
                          NULL) ;                     
     
     ShowWindow (hwnd, iCmdShow) ;
     UpdateWindow (hwnd) ;
     
     while (GetMessage (&msg, NULL, 0, 0))
     {
          TranslateMessage (&msg) ;
          DispatchMessage (&msg) ;
     }
     return msg.wParam ;
}
//回调函数1
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
     DWORD ThreadID;
	 DWORD id;
	 HDC hDCT; 
	 
     switch (message)
     {
	 case WM_COMMAND:
		 switch(LOWORD(wParam))
		 {
		 case IDM_FILE_MINIMIZE:
			 CloseWindow(hwnd);
			 return 0;
		 case IDM_FILE_EXIT:
			 DestroyWindow(hwnd);
			 return 0;
         case IDM_THREAD_TTHREAD1:
			 hDCT=GetDC(hwnd);
			 hThread=CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 

			 //MessageBox (NULL, TEXT ("TEDDY!"), 
             //         "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;
		  case IDM_THREAD_SUSPENDTHREAD:
             
			 SuspendThread(hThread);

			 //MessageBox (NULL, TEXT ("TEDDY!"), 
             //         "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;
		  case IDM_THREAD_RESUMETHREAD:
             
			 ResumeThread(hThread);

			 //MessageBox (NULL, TEXT ("TEDDY!"), 
             //         "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;
		  case IDM_THREAD_KILLTHREAD:
             
			 TerminateThread(hThread,0);
             
			 MessageBox (NULL, TEXT ("THREAD TERMINATED!"), 
                      "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;	 
		 }	
		 break;
              
     case WM_DESTROY:
          PostQuitMessage (0) ;
          return 0 ;
	 case WM_LBUTTONDOWN:
             //DWORD ThreadID;
			 
			 
			 //得到当前主线程的句柄
			 ThreadID=GetCurrentThreadID();
			 hThread=CreateThread(NULL,0,Thread4,(VOID*)ThreadID,NULL,&id);
			 //ResumeThread(hThread);

			 //MessageBox (NULL, TEXT ("TEDDY!"), 
             //         "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;
		  case WM_RBUTTONDOWN:
             
			 //SuspendThread(hThread);
             
			 //MessageBox (NULL, TEXT ("THREAD TERMINATED!"), 
             //         "tips", MB_ICONINFORMATION) ;
             //CreateThread(NULL,0,Thread2,hDCT,NULL,&ThreadID);
			 return 0;
			 break;
     }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}

//回调函数2
LRESULT CALLBACK NewWndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    if (message==WM_RBUTTONDOWN)
	{
		SetFocus(hSecondWnd);
	}
    return DefWindowProc (hwnd, message, wParam, lParam) ;
}

DWORD WINAPI Thread1(LPVOID param)
{
	 int i;
     HDC hDC;
	 hDC=(HDC)param;

	 
	 for(i=0;i<500;i++)
	 {
	      //sleep(200);
		  Rectangle(hDC,0,0,500-i,i);
	 }
	 MessageBox (NULL, TEXT ("Thread processed!"), 
                      "tips", MB_ICONINFORMATION) ;
	 return 1;

}

DWORD WINAPI Thread2(LPVOID param)
{
	 int i;
     HDC hDC;
     TCHAR szBuffer[16] ;
	 hDC=(HDC)param;

	 
	 for(i=0;i<1e100;i++)
	 {
	      //sleep(200);
		  TextOut (hDC, 400, 400, szBuffer, 
                   wsprintf (szBuffer, TEXT ("%d"), i++)) ;
          if (i>100000)
		  {
			  //ExitThread(i);
			  TextOut (hDC, 222, 331, szBuffer, 
                   wsprintf (szBuffer, TEXT ("%d"), i++)) ;
		      Sleep(200);
		  }
	 }
	 MessageBox (NULL, TEXT ("Thread2 processed!"), 
                      "tips", MB_ICONINFORMATION) ;
	 return 1;

}

DWORD WINAPI Thread3(LPVOID param)
{
	 int i;
     HDC hDC;
	 hDC=(HDC)param;

	 
	 for(i=0;i<500;i++)
	 {
	      //sleep(200);
		  Rectangle(hDC,0,0,i,500-i);
	 }
	 MessageBox (NULL, TEXT ("Thread processed!"), 
                      "tips", MB_ICONINFORMATION) ;
	 return 1;

}

DWORD WINAPI Thread4(LPVOID param)  //生成新窗口
{
    HWND hWndNew;
	DWORD ThreadID;
	HINSTANCE hInst;
	MSG msg;

	ThreadID=(DWORD)param;
	hWndNew= CreateWindow (
		                   "CreateByThread",                 
                          TEXT ("CreatByThread!"),  
                          WS_OVERLAPPEDWINDOW
                          |WS_HSCROLL|WS_VSCROLL,
     
                          CW_USEDEFAULT,               
                          CW_USEDEFAULT,             
                          CW_USEDEFAULT,              
                          CW_USEDEFAULT,               
                          NULL,                       
                          NULL,                       
                          hInst,                  
                          NULL) ;
	SetWindowLong(hWndNew,GWL_WNDPROC,(DWORD)NewWndProc);
	SetWindowPos(hWndNew,NULL,0,0,0,0,SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_FRAMECHANGED);
	ShowWindow(hWndNew,SW_NORMAL);
	//
	AttachThreadInput(GetCurrentThreadID(),ThreadID,TRUE);
    
	while (GetMessage (&msg, NULL, 0, 0))
     {
          TranslateMessage (&msg) ;
          DispatchMessage (&msg) ;
     }
     return msg.wParam ;
}