我正在尝试将MCM_GETSELRANGE windows 消息发送到标准 MonthCalendar。根据文档,我尝试了以下操作但没有成功(日期没有返回[因为它们没有设置为零以外的任何值],但是我确实得到了一个非零返回值,这似乎表明它成功了?):
using System;
using System.Runtime.InteropServices;
namespace GetSelRange
{
class Program
{
static void Main(string[] args)
{
IntPtr targetWindowHandle = new IntPtr(68684130);
SYSTEMTIME[] dateRange = new SYSTEMTIME[2];
IntPtr success = SendMessage(targetWindowHandle, MCM_GETSELRANGE, IntPtr.Zero, dateRange);
}
#region Win32API
const uint MCM_FIRST = 0x1000;
const uint MCM_GETSELRANGE = MCM_FIRST + 5;
[StructLayout(LayoutKind.Sequential)]
private struct SYSTEMTIME
{
[MarshalAs(UnmanagedType.U2)]
public ushort Year;
[MarshalAs(UnmanagedType.U2)]
public ushort Month;
[MarshalAs(UnmanagedType.U2)]
public ushort DayOfWeek;
[MarshalAs(UnmanagedType.U2)]
public ushort Day;
[MarshalAs(UnmanagedType.U2)]
public ushort Hour;
[MarshalAs(UnmanagedType.U2)]
public ushort Minute;
[MarshalAs(UnmanagedType.U2)]
public ushort Second;
[MarshalAs(UnmanagedType.U2)]
public ushort Milliseconds;
}
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, SYSTEMTIME[] lParam);
#endregion
}
}
pinvoke.net 似乎没有关于如何调用它的任何建议。
谢谢