Win32ウィンドウメッセージ - Neroli

2011/05/14 13:35 Sat

Win32ウィンドウメッセージ

定義はWinUser.hを参照

using System.Windows.Interop;
 
/// <summary>
/// Window Messages
/// </summary>
public	enum WindowsMessage
{
	/// <summary>
	/// ウィンドウが移動した時
	/// </summary>
	WM_MOVE	= 0x0003,
	/// <summary>
	/// ウィンドウのサイズが変更された時
	/// </summary>
	WM_SIZE	= 0x0005,
	/// <summary>
	/// 非クライアント領域でマウスカーソルが移動した時
	/// </summary>
	WM_NCMOUSEMOVE	= 0xa0,
	/// <summary>
	/// 非クライアント領域でマウスの左ボタンを押す
	/// </summary>
	WM_NCLBUTTONDOWN	= 0xA1,
	/// <summary>
	/// 非クライアント領域でマウスの左ボタンを離す
	/// </summary>
	WM_NCLBUTTONUP	= 0xA2,
	/// <summary>
	/// 非クライアント領域でマウスの左ボタンのダブルクリック
	/// </summary>
	WM_NCLBUTTONDBLCLK	= 0xA3,
	/// <summary>
	/// 非クライアント領域でマウスの右ボタンを押す
	/// </summary>
	WM_NCRBUTTONDOWN	= 0xA4,
	/// <summary>
	/// 非クライアント領域でマウスの右ボタンを離す
	/// </summary>
	WM_NCRBUTTONUP	= 0xA5,
	/// <summary>
	/// システムメニューを選択
	/// </summary>
	WM_SYSCOMMAND		= 0x0112,
}
 
/// <summary>
/// WM_NCHITTEST and MOUSEHOOKSTRUCT Mouse Position Codes
/// </summary>
public	enum MouseHitTestCodes
{
	HTERROR			= (-2),
	HTTRANSPARENT	= (-1),
	HTNOWHERE		= 0,
	HTCLIENT		= 1,
	HTCAPTION		= 2,
	HTSYSMENU		= 3,
	HTGROWBOX		= 4,
	HTSIZE			= HTGROWBOX,
	HTMENU			= 5,
	HTHSCROLL		= 6,
	HTVSCROLL		= 7,
	HTMINBUTTON		= 8,
	HTMAXBUTTON		= 9,
	HTLEFT			= 10,
	HTRIGHT			= 11,
	HTTOP			= 12,
	HTTOPLEFT		= 13,
	HTTOPRIGHT		= 14,
	HTBOTTOM		= 15,
	HTBOTTOMLEFT	= 16,
	HTBOTTOMRIGHT	= 17,
	HTBORDER		= 18,
	HTREDUCE		= HTMINBUTTON,
	HTZOOM			= HTMAXBUTTON,
	HTSIZEFIRST		= HTLEFT,
	HTSIZELAST		= HTBOTTOMRIGHT,
	HTOBJECT		= 19,
	HTCLOSE			= 20,
	HTHELP			= 21,
}
void _Loaded( object sender, RoutedEventArgs e )
{
	var	helper		= new WindowInteropHelper(this);
	var	hwndSource	= HwndSource.FromHwnd( helper.Handle );
	var	wndProcHandler	= new HwndSourceHook( _WndProc );
	hwndSource.AddHook( wndProcHandler );
}
 
/// <summary>
/// _WndProc
/// </summary>
/// <param name="hwnd"></param>
/// <param name="msg"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <param name="handled"></param>
/// <returns></returns>
private IntPtr _WndProc(
	IntPtr		hwnd,
	int			msg,
	IntPtr		wParam,
	IntPtr		lParam,
	ref bool	handled
)
{
	handled	= false;
 
	switch( (Win32.WindowsMessage)msg )
	{
	case	Win32.WindowsMessage.WM_NCMOUSEMOVE:
		break;
	case	Win32.WindowsMessage.WM_SIZE:
		break;
	case	Win32.WindowsMessage.WM_MOVE:
		break;
	case	Win32.WindowsMessage.WM_NCLBUTTONDOWN:
		if( wParam.ToInt32() == (int)Win32.MouseHitTestCodes.HTCAPTION )
		{
			short x = (short)((lParam.ToInt32() & 0xFFFF));
			short y = (short)((lParam.ToInt32() >> 16));
		}
		break;
	case	Win32.WindowsMessage.WM_NCLBUTTONDBLCLK:
		break;
	case	Win32.WindowsMessage.WM_NCRBUTTONDOWN:
		break;
	case	Win32.WindowsMessage.WM_NCRBUTTONUP:
		break;
	}
 
	return	IntPtr.Zero;
}
 
 

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