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- /*-------------------------------------------------------
- POPPAD1.C -- Popup Editor using child window edit box
- (c) Charles Petzold, 1998
- -------------------------------------------------------*/
-
- #include <windows.h>
-
- #define ID_EDIT 1
-
- LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
-
- TCHAR szAppName[] = TEXT ("PopPad1") ;
-
- int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
- PSTR szCmdLine, int iCmdShow)
- {
- 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, szAppName,
- 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 hwndEdit ;
-
- switch (message)
- {
- case WM_CREATE :
- hwndEdit = CreateWindow (TEXT ("edit"), NULL,
- WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
- WS_BORDER | ES_LEFT | ES_MULTILINE |
- ES_AUTOHSCROLL | ES_AUTOVSCROLL,
- 0, 0, 0, 0, hwnd, (HMENU) ID_EDIT,
- ((LPCREATESTRUCT) lParam) -> hInstance, NULL) ;
- return 0 ;
-
- case WM_SETFOCUS :
- SetFocus (hwndEdit) ;
- return 0 ;
-
- case WM_SIZE :
- MoveWindow (hwndEdit, 0, 0, LOWORD (lParam), HIWORD (lParam), TRUE) ;
- return 0 ;
-
- case WM_COMMAND :
- if (LOWORD (wParam) == ID_EDIT)
- if (HIWORD (wParam) == EN_ERRSPACE ||
- HIWORD (wParam) == EN_MAXTEXT)
-
- MessageBox (hwnd, TEXT ("Edit control out of space."),
- szAppName, MB_OK | MB_ICONSTOP) ;
- return 0 ;
-
- case WM_DESTROY :
- PostQuitMessage (0) ;
- return 0 ;
- }
- return DefWindowProc (hwnd, message, wParam, lParam) ;
- }
-