好吧,伙计们,所以这就是我想要实现的目标:
我希望所有无序的桌面图标在点击按钮时排列在桌面的左上角。
以下是我正在使用的代码:
[DllImport("user32.dll")]
private static extern IntPtr GetDesktopWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern int SendMessage(IntPtr hWnd, uint Msg, uint wParam, int lParam);
private void button1_Click(object sender, EventArgs e)
{
IntPtr hwnd = GetDesktopWindow(); //hwnd for desktop
SendMessage(hwnd, LVM_ARRANGE, LVA_ALIGNLEFT, 0);
}
我相信有与LVM_ARRANGE
和LVA_ALIGNLEFT
相关联的未分配整数,任何人都可以指导我们它们是什么。我不熟悉使用dll,所以请原谅我,如果我问一个愚蠢的问题。
谢谢!
帮助我们,我使用以下代码,但仍无效:
private void button1_Click(object sender, EventArgs e)
{
IntPtr hanle = GetHandle();
IntPtr done;
done = SendMessage(hanle, LVM_ARRANGE, LVA_ALIGNLEFT, IntPtr.Zero);
}
public IntPtr GetHandle()
{
hShellWnd = GetShellWindow();
hDefView = FindWindowEx(hShellWnd, IntPtr.Zero, "SHELLDLL_DefView", null);
folderView = FindWindowEx(hDefView, IntPtr.Zero,"SysListView32", null);
return folderView;
}
public const int LVM_FIRST = 0x1000;
public const uint LVM_ARRANGE = LVM_FIRST + 22;
//public const IntPtr LVA_SNAPTOGRID = 5;
IntPtr LVA_ALIGNLEFT = new IntPtr(0x0001);
IntPtr hShellWnd;
IntPtr hDefView;
IntPtr folderView;
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr GetDesktopWindow();
[DllImport("user32.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);
[DllImport("user32.dll")]
static extern IntPtr GetShellWindow();
答案 0 :(得分:1)
我环顾四周,这个样本似乎有效。
private void button1_Click(object sender, System.EventArgs e)
{
SendMessage(GetDesktopWindow(), LVM_ARRANGE, LVA_SNAPTOGRID , 0);
}
public const int LVM_ARRANGE = 4118;
public const int LVA_SNAPTOGRID = 5;
[DllImport("User32.dll", CharSet=CharSet.Auto)]
public static extern IntPtr GetDesktopWindow();
[DllImport("user32.dll")]
public static extern int SendMessage( IntPtr hWnd, uint Msg, int wParam, int lParam );
它来自以下链接:http://www.codeproject.com/Messages/1168661/Auto-Arrange-desktop-icons.aspx
请注意头文件
#define LVA_DEFAULT 0x0000
#define LVA_ALIGNLEFT 0x0001
#define LVA_ALIGNTOP 0x0002
#define LVA_SNAPTOGRID 0x0005
因此,要左对齐,您需要使用int 1。