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- /*
- * Function (s) demonstrated in this program: AddAtom ()
- * GlobalAddAtom ()
- * FindAtom ()
- * GlobalFindAtom ()
- * GetAtomName ()
- * GlobalGetAtomName ()
- * GetAtomHandle ()
- * DeleteAtom ()
- * GlobalDeleteAtom ()
- * Compiler version: MSC v5.10
- * Description: This program demonstrates the various atom functions available
- * in the Windows 2.03 Software Development Kit.
- */
-
- #include <windows.h>
- #include "process.h"
- #include "atomics.h"
-
- long FAR PASCAL WndProc (HWND, unsigned, WORD, LONG);
-
- int PASCAL WinMain (hInstance, hPrevInstance, lpszCmdLine, nCmdShow)
- HANDLE hInstance, hPrevInstance;
- LPSTR lpszCmdLine;
- int nCmdShow;
- {
- static char szAppName [] = "SampleWindow";
- HWND hWnd;
- WNDCLASS wndclass;
- MSG msg;
- HMENU hMenu;
-
- if (!hPrevInstance)
- {
- 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 = GetStockObject (WHITE_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = szAppName;
- if (!RegisterClass (&wndclass))
- return FALSE;
- }
-
- hMenu = LoadMenu (hInstance, "MainMenu");
- hWnd = CreateWindow (szAppName, "The wonders of atoms", WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
- NULL, hMenu, hInstance, NULL);
-
- ShowWindow (hWnd, nCmdShow);
- UpdateWindow (hWnd);
-
- while (GetMessage (&msg, NULL, 0, 0))
- {
- TranslateMessage (&msg);
- DispatchMessage (&msg);
- }
- return (msg.wParam);
- }
-
-
- long FAR PASCAL WndProc (hWnd, iMessage, wParam, lParam)
- HWND hWnd;
- unsigned iMessage;
- WORD wParam;
- LONG lParam;
- {
- int IDForAtom, IDForAtom2, ActualAtomSize, AtomMaxSize = 20, MB_Return;
- HANDLE hToAtom;
- BOOL bTableAdded;
- char szbuff[20];
-
- switch (iMessage)
- {
- case WM_COMMAND:
- switch (wParam)
- {
- case IDM_EXECUTE:
- bTableAdded = InitAtomTable (101);
- /* Only neccessary if you want more
- than 37 entries in your atom table
- note: 101 is the number of possible
- entries and should be PRIME */
-
- IDForAtom = AddAtom ( (LPSTR)"String");
- /* Add the string "String" to the atom table */
-
- IDForAtom2 = GlobalAddAtom ( (LPSTR)"String2");
- /* Add the string "String2" to the Atom table,
- making it accessible to other applications. */
-
- IDForAtom = FindAtom ( (LPSTR)"String");
- /* Search through the atom table and return the atom
- corresponding to the character string pointed
- to by (LPSTR)"String". */
- ActualAtomSize = GetAtomName (IDForAtom, (LPSTR)szbuff, AtomMaxSize);
- /* Retrieve a copy of the char string that corresponds to the
- atom specified by IDForAtom */
- hToAtom = GetAtomHandle (IDForAtom);
- IDForAtom = DeleteAtom (IDForAtom);
- MB_Return = MessageBox (NULL, (LPSTR)szbuff,
- (LPSTR)"Atom Example", MB_OK);
- IDForAtom = GlobalFindAtom ( (LPSTR)"String2");
- ActualAtomSize = GlobalGetAtomName (IDForAtom, (LPSTR)szbuff,
- AtomMaxSize);
- MB_Return = MessageBox (NULL, (LPSTR)szbuff,
- (LPSTR)"Global Atom Example", MB_OK);
- IDForAtom2 = GlobalDeleteAtom (IDForAtom2);
- }
- break;
-
- case WM_DESTROY:
- PostQuitMessage (0);
- break;
-
- default:
- return DefWindowProc (hWnd, iMessage, wParam, lParam);
- }
- return (0L);
- }
-
-
-