// Win32 Tutorial (Checkbox Buttons)
// Alan Baylis 2004
#include <windows.h>
#include "resource.h"
const char ClassName[] = "MainWindowClass";
HWND hWndButton;
LRESULT CALLBACK WndProc( HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam )
{
switch (Msg)
{
case WM_CREATE:
{
HINSTANCE hInstance = (HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE);
hWndButton = CreateWindowEx(
0,
"BUTTON",
"Text",
WS_VISIBLE | WS_CHILD | BS_AUTOCHECKBOX,
10,
10,
80,
20,
hWnd,
(HMENU)IDB_CHECKBOX,
hInstance,
NULL);
}
break;
case WM_COMMAND:
{
switch (LOWORD(wParam))
{
case IDB_CHECKBOX:
{
switch (HIWORD(wParam))
{
case BN_CLICKED:
if (SendDlgItemMessage(hWnd, IDB_CHECKBOX, BM_GETCHECK, 0, 0))
MessageBox(NULL, "Checkbox Selected", "Success", MB_OK | MB_ICONINFORMATION);
else
MessageBox(NULL, "Checkbox Unselected", "Success", MB_OK | MB_ICONINFORMATION);
break;
}
}
break;
}
return 0;
}
break;
case WM_CLOSE:
DestroyWindow(hWnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return (DefWindowProc(hWnd, Msg, wParam, lParam));
}
return 0;
}
INT WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
INT nCmdShow )
{
WNDCLASSEX wc;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
wc.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = ClassName;
if (!RegisterClassEx(&wc))
{
MessageBox(NULL, "Failed To Register The Window Class.", "Error", MB_OK | MB_ICONERROR);
return 0;
}
HWND hWnd;
hWnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
ClassName,
"Checkbox Buttons",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
240,
120,
NULL,
NULL,
hInstance,
NULL);
if (!hWnd)
{
MessageBox(NULL, "Window Creation Failed.", "Error", MB_OK | MB_ICONERROR);
return 0;
}
ShowWindow(hWnd, SW_SHOW);
UpdateWindow(hWnd);
MSG Msg;
while (GetMessage(&Msg, NULL, 0, 0))
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return Msg.wParam;
}
|
