SDK Source Code Analysis 10

1#include <windows.h>2 3 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);4 5 //define struct One is an int one is a string6 struct7 {8     intIstyle;9TCHAR *Sztext;Ten } OneButton[] = A { -Bs_pushbutton, TEXT ("pushbutton"), -Bs_defpushbutton, TEXT ("Defpushbutton"), theBs_checkbox, TEXT ("CHECKBOX"), -Bs_autocheckbox,text ("Autocheckbox"), -Bs_radiobutton,text ("RADIOBUTTON"), -Bs_3state,text ("3STATE"), +Bs_auto3state,text ("auto3state"), -Bs_groupbox,text ("GROUPBOX"), +Bs_autoradiobutton,text ("Autoradtobutton"), ABs_ownerdraw,text ("OwnerDraw") at }; - #defineNUM (sizeof button/sizeof button[0])//How many of them are there? - intWINAPI WinMain (hinstance hinstance, hinstance hprevinstance, PSTR szCmdLine,intncmdshow) - { - wndclass wndclass; - HWND hwnd; in msg msg; -TCHAR szclassname[] = TEXT ("MyClass"), szwindowsname[] = TEXT ("mywindows"); to  +Wndclass.cbclsextra =0; -Wndclass.cbwndextra =0; theWndclass.hbrbackground =(Hbrush) getstockobject (White_brush); *Wndclass.hcursor =loadcursor (NULL, idc_arrow); $Wndclass.hicon =LoadIcon (NULL, idi_application);Panax NotoginsengWndclass.hinstance =hinstance; -Wndclass.lpfnwndproc =WndProc; theWndclass.lpszclassname =Szclassname; +Wndclass.lpszmenuname =NULL; AWndclass.style = Cs_vredraw |Cs_hredraw; the  +     if(! RegisterClass (&wndclass)) -     { $MessageBox (HWnd, TEXT ("The application on Windows nt!"), TEXT ("error~"), MB_OK); $     } -  -HWnd =CreateWindow (Szclassname, the Szwindowsname, - Ws_overlappedwindow,Wuyi Cw_usedefault, the Cw_usedefault, - Cw_usedefault, Wu Cw_usedefault, - null, NULL, HINSTANCE, NULL); About ShowWindow (hWnd, ncmdshow); $ UpdateWindow (hWnd); -  -      while(GetMessage (&msg, NULL, NULL, NULL)) -     { ATranslateMessage (&msg); +DispatchMessage (&msg); the     } -     returnMsg.wparam; $ } the  the LRESULT CALLBACK WndProc (HWND hwnd, UINT MSG, WPARAM WPARAM, LPARAM LPARAM) the { the     StaticHWND Hwndbutton[num]; -     Staticrect rect; in     StaticTCHAR sztop[] = TEXT ("message WParam LParam"), theSzund[] = TEXT ("_______         ______    ______"), theSzformat[] = TEXT ("%-16s%04x-%04x%04x-%04x"), szbuffer[ -]; About     Static intCxchar, Cychar; the     inti; the paintstruct PS; the HDC hdc; +  -     Switch(msg) the     {Bayi      Casewm_create: theCxchar = LoWord (Getdialogbaseunits ());//Get character width theCychar = HiWord (Getdialogbaseunits ());//Get character height These two are the API for dialog boxes -  -          for(i =0; i < NUM; i++) the         { theHwndbutton[i] = CreateWindow (TEXT ("Button"), Button[i].sztext, Ws_child | ws_visible |Button[i].istyle, theCxchar, cychar* (1+2* i), -* Cxchar,7* Cychar/4, HWnd, (HMENU) I, the((lpcreatestruct) LParam)hinstance, NULL); -                 //generate child window handle saved in Hwndbutton the                 //lparam can actually be converted into a struct. the         } the         return 0;94      Casewm_size: theRect.left = -*Cxchar; theRect.top =2*Cychar; theRect.right =LoWord (lParam);98Rect.bottom =HiWord (lParam); About         //set the display text area -         return 0;101      CaseWM_PAINT:102HDC = BeginPaint (hWnd, &PS);103 104SelectObject (hdc, Getstockobject (System_fixed_font));//set the equal width font theSetBkMode (hdc, TRANSPARENT);//Set Transparent mode106TextOut (HDC, -*Cxchar, Cychar, Sztop, Lstrlen (sztop));107TextOut (HDC, -*Cxchar, Cychar, Szund, Lstrlen (Szund));108 109EndPaint (HWnd, &PS); the         return 0;111      CaseWm_drawitem: the      CaseWm_command:113ScrollWindow (HWnd,0,-cychar, &rect, &rect);//scroll up when you receive the command theHDC =GetDC (hWnd); the  the SelectObject (hdc, Getstockobject (System_fixed_font));117TextOut (HDC, -* Cxchar, cychar* (Rect.bottom/cychar-1), Szbuffer,118 wsprintf (Szbuffer, Szformat,119msg = = Wm_drawitem? TEXT ("Wm_drawitem"): TEXT ("Wm_command"), - HiWord (WParam), LoWord (WParam),121 HiWord (LParam), LoWord (LParam));122                 123                 //output information. 124 ReleaseDC (HWND, HDC); theValidateRect (HWnd, &rect);//make the window effectively delete the WM_PAINT message from the message queue126          Break;127      CaseWm_destroy: -PostQuitMessage (0);129         return 0; the     }131  the     returnDefWindowProc (hWnd, MSG, WParam, lParam);133}

SDK Source Code Analysis 10