static UINT nTimer;

case WM_TIMER:
	if ( nTimer == (UINT)wParam ) {
		KillTimer( hDlg, nTimer );
		HWND hMaspaint;
		hMaspaint = Tool.ExecuteAndGetWindowHandle(
			"mspaint.exe",
			"MSPaintApp",
			NULL
		);
		PostMessage(
			hMaspaint,
			WM_COMMAND,
			MAKEWPARAM(LOWORD(57637),HIWORD(0)),
			0
		);
	}
	break;

case WM_COMMAND:
	// ハードコピー
	if ( LOWORD(wParam) == IDC_HCOPY ) {
		Tool.PrintScreenKey( true );
		nTimer = SetTimer( hDlg, 1, 500, NULL );
	}