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#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
static char *title = TEXT("Check Box");
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow )
{
MSG msg ;
WNDCLASS wc = {0};
wc.lpszClassName = TEXT( "Check Box" );
wc.hInstance = hInstance ;
wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
wc.lpfnWndProc = WndProc ;
wc.hCursor = LoadCursor(0, IDC_ARROW);
RegisterClass(&wc);
CreateWindow( wc.lpszClassName, title,
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
150, 150, 230, 150, 0, 0, hInstance, 0);
while( GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
switch(msg)
{
case WM_CREATE:
{
CreateWindow(TEXT("button"), TEXT("Show Title"),
WS_VISIBLE | WS_CHILD | BS_CHECKBOX,
20, 20, 185, 35,
hwnd, (HMENU) 1, ((LPCREATESTRUCT)lParam)->hInstance, NULL);
CheckDlgButton(hwnd, 1, BST_CHECKED);
break;
}
case WM_COMMAND:
{
BOOL checked = IsDlgButtonChecked(hwnd, 1);
if (checked) {
CheckDlgButton(hwnd, 1, BST_UNCHECKED);
SetWindowText(hwnd, TEXT(""));
} else {
CheckDlgButton(hwnd, 1, BST_CHECKED);
SetWindowText(hwnd, title);
}
break;
}
case WM_DESTROY:
{
PostQuitMessage(0);
break;
}
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
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