| CODE |
| #include <windows.h> //We define the ID of all our stuff #define Edit_ID 1 #define Static_ID 2 #define Button_ID 3 /* Declare Windows procedure */ LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); /* Make the class name into a global variable */ char szClassName[ ] = "WindowsApp"; int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil) { HWND hwnd; /* This is the handle for our window */ MSG messages; /* Here messages to the application are saved */ WNDCLASSEX wincl; /* Data structure for the windowclass */ /* The Window structure */ wincl.hInstance = hThisInstance; wincl.lpszClassName = szClassName; wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */ wincl.style = CS_DBLCLKS; /* Catch double-clicks */ wincl.cbSize = sizeof (WNDCLASSEX); /* Use default icon and mouse-pointer */ wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION); wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION); wincl.hCursor = LoadCursor (NULL, IDC_ARROW); wincl.lpszMenuName = NULL; /* No menu */ wincl.cbClsExtra = 0; /* No extra bytes after the window class */ wincl.cbWndExtra = 0; /* structure or the window instance */ /* Use Windows's default color as the background of the window */ wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND; /* Register the window class, and if it fails quit the program */ if (!RegisterClassEx (&wincl)) return 0; /* The class is registered, let's create the program*/ hwnd = CreateWindowEx ( 0, /* Extended possibilites for variation */ szClassName, /* Classname */ "Hello", /* Title Text */ WS_OVERLAPPEDWINDOW, /* default window */ CW_USEDEFAULT, /* Windows decides the position */ CW_USEDEFAULT, /* where the window ends up on the screen */ 544, /* The programs width */ 375, /* and height in pixels */ HWND_DESKTOP, /* The window is a child-window to desktop */ NULL, /* No menu */ hThisInstance, /* Program Instance handler */ NULL /* No Window Creation data */ ); /* Make the window visible on the screen */ ShowWindow (hwnd, nFunsterStil); /* Run the message loop. It will run until GetMessage() returns 0 */ while (GetMessage (&messages, NULL, 0, 0)) { /* Translate virtual-key messages into character messages */ TranslateMessage(&messages); /* Send message to WindowProcedure */ DispatchMessage(&messages); } /* The program return-value is 0 - The value that PostQuitMessage() gave */ return messages.wParam; } /* This function is called by the Windows function DispatchMessage() */ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) /* handle the messages */ { case WM_CREATE: //We create all our stuff CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "", WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL, 0, 0, 0, 0, hwnd, (HMENU)Edit_ID, GetModuleHandle(NULL), NULL); CreateWindowEx(WS_EX_CLIENTEDGE, "BUTTON", "Put text", WS_CHILD | WS_VISIBLE, 0, 0, 0, 0, hwnd, (HMENU)Button_ID, GetModuleHandle(NULL), NULL); CreateWindowEx(WS_EX_CLIENTEDGE, "STATIC", "Hello", WS_CHILD | WS_VISIBLE, 0, 0, 0, 0, hwnd, (HMENU)Static_ID, GetModuleHandle(NULL), NULL); break; case WM_SIZE: { //First we get the HWND of all our stuff HWND Button=GetDlgItem(hwnd,Button_ID); HWND Static=GetDlgItem(hwnd,Static_ID); HWND Edit=GetDlgItem(hwnd,Edit_ID); //Now we get the new size of our parent window RECT window_size; GetClientRect(hwnd, &window_size); //We update the settings for all our stuff SetWindowPos(Button, NULL, 0, 0, 100, 30, SWP_NOZORDER); SetWindowPos(Static, NULL, 100, 0, window_size.right-100, 30, SWP_NOZORDER); SetWindowPos(Edit, NULL, 0, 30, window_size.right, window_size.bottom-30, SWP_NOZORDER); } break; case WM_COMMAND: switch(LOWORD(wParam)) { case Button_ID: //First we get the size of the string in the Edit form int len = GetWindowTextLength(GetDlgItem(hwnd, Edit_ID)); //If it containes text if(len > 0) { //Now get the string char* buf; buf = (char*)GlobalAlloc(GPTR, len + 1); GetDlgItemText(hwnd, Edit_ID, buf, len + 1); //Now we update our static SetDlgItemText(hwnd, Static_ID, buf); //Now we show a popup MessageBox(hwnd,buf,"Hello",MB_OK); //We free our memory GlobalFree((HANDLE)buf); } else //If it doesn't containe any text { SetDlgItemText(hwnd, Static_ID, ""); MessageBox(hwnd,"No text","Hello",MB_OK); } break; } break; case WM_DESTROY: PostQuitMessage (0); /* send a WM_QUIT to the message queue */ break; default: /* for messages that we don't deal with */ return DefWindowProc (hwnd, message, wParam, lParam); } return 0; } |
