Win32 laajempipohja

Mureakuha

#include <windows.h>
 
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
HINSTANCE hInstance;
 
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
    MSG msg;
    WNDCLASSEX wndclass;
 
    wndclass.cbSize = sizeof (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) COLOR_WINDOW;
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = "OmaLuokka";
    wndclass.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
 
    RegisterClassEx (&wndclass);
 
    HWND hwnd = CreateWindow ("OmaLuokka", "OmaOhjelma", 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 iMsg, WPARAM wParam, LPARAM lParam)
{
    static HWND hwndGroupbox;
    static HFONT hFont;
 
    switch (iMsg)
    {
 
    case WM_CREATE :
        hFont = (HFONT) GetStockObject(DEFAULT_GUI_FONT) ;
        hwndGroupbox = CreateWindowEx(NULL, "button", "OmaOhjelma",
                     WS_CHILD | WS_VISIBLE | BS_GROUPBOX, 0, 0, 0, 0, 
                     hwnd, (HMENU) 0, hInstance, NULL);
        SendMessage (hwndGroupbox, WM_SETFONT, (WPARAM) hFont, MAKELPARAM(TRUE, 0));
        return 0;
 
    case WM_COMMAND:
        return 0;
 
    case WM_SIZE:
        MoveWindow (hwndGroupbox, 10, 10, LOWORD(lParam)-20, HIWORD(lParam)-20, TRUE);
        return 0;
 
    case WM_DESTROY:
        PostQuitMessage (0);
        return 0;
 
    }
 
    return DefWindowProc (hwnd, iMsg, wParam, lParam);
}

Lisäykset:

• Ohjelma osaa käyttää oikeaa systeemifonttia
• Lomakkeelle piirretään kehyskontrolli
• Lomaketta voi suurentaa ja pienentää ja WM_SIZE sanoma skaalaa kehyksen sitä mukaa

_{Alkuperäinen (c) Petteri Hämäläinen}