Multi-ThreadTest.rar_win32 多线程

/*-------------------------------------------------------------------------- MULTI1.C -- Multitasking Demo (c) Charles Petzold, 1998 ----------------------------------------------------------------------------*/ #include <windows.h> #include <math.h> #include <stdio.h> LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ; int cyChar ; int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { static TCHAR szAppName[] = TEXT ("Multi1") ; HWND hwnd ; MSG msg ; WNDCLASS wndclass ; 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 ; } hwnd = CreateWindow ( szAppName, TEXT ("Multitasking Demo"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL) ; ShowWindow (hwnd, iCmdShow) ; UpdateWindow (hwnd) ; while (GetMessage (&msg, NULL, 0, 0)) { TranslateMessage (&msg) ; DispatchMessage (&msg) ; } return 0; } int CheckBottom (HWND hwnd, int cyClient, int iLine) { if (iLine * cyChar + cyChar > cyClient) { InvalidateRect (hwnd, NULL, TRUE) ; UpdateWindow (hwnd) ; iLine = 0 ; } return iLine ; } // ------------------------------------------------------------------------- // Window 1: Display increasing sequence of numbers // ------------------------------------------------------------------------- LRESULT APIENTRY WndProc1 ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static int iNum, iLine, cyClient ; HDC hdc ; TCHAR szBuffer[16] ; switch (message) { case WM_SIZE: cyClient = HIWORD (lParam) ; return 0 ; case WM_TIMER: if (iNum < 0) iNum = 0 ; iLine = CheckBottom (hwnd, cyClient, iLine) ; hdc = GetDC (hwnd) ; TextOut (hdc, 0, iLine * cyChar, szBuffer, wsprintf (szBuffer, TEXT ("%d"), iNum++)) ; ReleaseDC (hwnd, hdc) ; iLine++ ; return 0 ; } return DefWindowProc (hwnd, message, wParam, lParam) ; } // -------------------------------------------------------------------------- // Window 2: Display increasing sequence of prime numbers // -------------------------------------------------------------------------- LRESULT APIENTRY WndProc2 ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static int num,iLine, cyClient ; double iNum = 1.0f; HDC hdc ; int i, iSqrt ; TCHAR szBuffer[16] ; switch (message) { case WM_SIZE: cyClient = HIWORD (lParam) ; return 0 ; case WM_TIMER: do { if (++iNum < 0) iNum = 0 ; iSqrt = (int)sqrt(iNum) ; num=(int)iNum; for (i = 2 ; i <= iSqrt ; i++) if (num % i == 0) break ; } while (i <= iSqrt) ; iLine = CheckBottom (hwnd, cyClient, iLine) ; hdc = GetDC (hwnd) ; TextOut ( hdc, 0, iLine * cyChar, szBuffer, wsprintf (szBuffer, TEXT ("%d"), iNum)) ; ReleaseDC (hwnd, hdc) ; iLine++ ; return 0 ; } return DefWindowProc (hwnd, message, wParam, lParam) ; } // -------------------------------------------------------------------------- // Window 3: Display increasing sequence of Fibonacci numbers // -------------------------------------------------------------------------- LRESULT APIENTRY WndProc3 ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam) { static int iNum = 0, iNext = 1, iLine, cyClient ; HDC hdc ; int iTemp ; TCHAR szBuffer[16] ; switch (message) { case WM_SIZE: cyClient = HIWORD (lParam) ; return 0 ; case WM_TIMER: if (iNum < 0) { iNum = 0 ; iNext = 1 ; } iLine = CheckBottom (hwnd, cyClient, iLine) ; hdc = GetDC (hwnd) ; TextOut ( hdc, 0, iLine * cyChar, szBuffer, wsprintf (szBuffer, "%d", iNum)) ; ReleaseDC (hwnd, hdc) ; iTemp=iNum ; iNum=iNext ; iNext+=iTemp ; iLine++ ; return 0 ; } return DefWindowProc (hwnd, message, wParam, lParam) ; } // -------------------------------------------------------------------------- // Window 4: Display circles of random radii // --------------------------------------------------------------------------- LRESULT APIENTRY WndProc4 ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static int cxClient, cyClient ; HDC hdc ; int iDiameter ; switch (message) { case WM_SIZE: cxClient = LOWORD (lParam) ; cyClient = HIWORD (lParam) ; return 0 ; case WM_TIMER: InvalidateRect (hwnd, NULL, TRUE) ; UpdateWindow (hwnd) ; iDiameter = rand() % (max (1, min (cxClient, cyClient))) ; hdc = GetDC (hwnd) ; Ellipse (hdc, (cxClient - iDiameter) / 2, (cyClient - iDiameter) / 2, (cxClient + iDiameter) / 2, (cyClient + iDiameter) / 2) ; ReleaseDC (hwnd, hdc) ; return 0 ; } return DefWindowProc (hwnd, message, wParam, lParam) ; } // -------------------------------------------------------------------------- // Main window to create child windows // -------------------------------------------------------------------------- LRESULT APIENTRY WndProc ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static HWND hwndChild[4] ; static TCHAR * szChildClass[] = { TEXT ("Child1"), TEXT ("Child2"), TEXT ("Child3"), TEXT ("Child4") } ; static WNDPROC ChildProc[] = { WndProc1, WndProc2, WndProc3, WndProc4 } ; HINSTANCE hInstance ; int i, cxClient, cyClient ; WNDCLASS wndclass ; switch (message) { case WM_CREATE: hInstance = (HINSTANCE) GetWindowLong (hwnd, GWL_HINSTANCE) ; wndclass.style = CS_HREDRAW | CS_VREDRAW ; wndclass.cbClsExtra = 0 ; wndclass.cbWndExtra = 0 ; wndclass.hInstance = hInstance ; wndclass.hIcon = NULL ; wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ; wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ; wndclass.lpszMenuName = NULL ; for (i = 0 ; i < 4 ; i++) { wndclass.lpfnWndProc = ChildProc[i] ; wndclass.lpszClassName = szChildClass[i] ; RegisterClass (&wndclass) ; hwndCh