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- /*----------------------------------------
- BTNLOOK.C -- Button Look Program
- (c) Charles Petzold, 1998
- ----------------------------------------*/
-
- #include <windows.h>
-
- struct
- {
- int iStyle ;
- TCHAR * szText ;
- }
- button[] =
- {
- BS_PUSHBUTTON, TEXT ("PUSHBUTTON"),
- BS_DEFPUSHBUTTON, TEXT ("DEFPUSHBUTTON"),
- BS_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 ("AUTORADIO"),
- BS_OWNERDRAW, TEXT ("OWNERDRAW")
- } ;
-
- #define NUM (sizeof button / sizeof button[0])
-
- LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
-
- int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
- PSTR szCmdLine, int iCmdShow)
- {
- static TCHAR szAppName[] = TEXT ("BtnLook") ;
- 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 ("Button Look"),
- 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 msg.wParam ;
- }
-
- LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
- {
- static HWND hwndButton[NUM] ;
- static RECT rect ;
- static TCHAR szTop[] = TEXT ("message wParam lParam"),
- szUnd[] = TEXT ("_______ ______ ______"),
- szFormat[] = TEXT ("%-16s%04X-%04X %04X-%04X"),
- szBuffer[50] ;
- static int cxChar, cyChar ;
- HDC hdc ;
- PAINTSTRUCT ps ;
- int i ;
-
- switch (message)
- {
- case WM_CREATE :
- cxChar = LOWORD (GetDialogBaseUnits ()) ;
- cyChar = HIWORD (GetDialogBaseUnits ()) ;
-
- for (i = 0 ; i < NUM ; i++)
- hwndButton[i] = CreateWindow ( TEXT("button"),
- button[i].szText,
- WS_CHILD | WS_VISIBLE | button[i].iStyle,
- cxChar, cyChar * (1 + 2 * i),
- 20 * cxChar, 7 * cyChar / 4,
- hwnd, (HMENU) i,
- ((LPCREATESTRUCT) lParam)->hInstance, NULL) ;
- return 0 ;
-
- case WM_SIZE :
- rect.left = 24 * cxChar ;
- rect.top = 2 * cyChar ;
- rect.right = LOWORD (lParam) ;
- rect.bottom = HIWORD (lParam) ;
- return 0 ;
-
- case WM_PAINT :
- InvalidateRect (hwnd, &rect, TRUE) ;
-
- hdc = BeginPaint (hwnd, &ps) ;
- SelectObject (hdc, GetStockObject (SYSTEM_FIXED_FONT)) ;
- SetBkMode (hdc, TRANSPARENT) ;
-
- TextOut (hdc, 24 * cxChar, cyChar, szTop, lstrlen (szTop)) ;
- TextOut (hdc, 24 * cxChar, cyChar, szUnd, lstrlen (szUnd)) ;
-
- EndPaint (hwnd, &ps) ;
- return 0 ;
-
- case WM_DRAWITEM :
- case WM_COMMAND :
- ScrollWindow (hwnd, 0, -cyChar, &rect, &rect) ;
-
- hdc = GetDC (hwnd) ;
- SelectObject (hdc, GetStockObject (SYSTEM_FIXED_FONT)) ;
-
- TextOut (hdc, 24 * cxChar, cyChar * (rect.bottom / cyChar - 1),
- szBuffer,
- wsprintf (szBuffer, szFormat,
- message == WM_DRAWITEM ? TEXT ("WM_DRAWITEM") :
- TEXT ("WM_COMMAND"),
- HIWORD (wParam), LOWORD (wParam),
- HIWORD (lParam), LOWORD (lParam))) ;
-
- ReleaseDC (hwnd, hdc) ;
- ValidateRect (hwnd, &rect) ;
- break ;
-
- case WM_DESTROY :
- PostQuitMessage (0) ;
- return 0 ;
- }
- return DefWindowProc (hwnd, message, wParam, lParam) ;
- }
-