#&cls&@powershell -c "Get-Content '%~0' | Out-String | Invoke-Expression" &pause&exit
1..3|%{start C:\"Program Files (x86)"\Tencent\WeChat\WeChat.exe}
while($j -ne 3){sleep 1;if($j -ne $null){rv j};ps wechat|%{if(!($_.mainwindowtitle -eq '')){$j++}}}
cls

#Windows API
$code=@'
    using System;
    using System.Runtime.InteropServices;
    public struct RECT{ 
        public uint left;
        public uint top;
        public uint right;
        public uint bottom;
    }
    public static class WinApi{
        [DllImport("user32.dll")]
        public static extern bool SetWindowPos(uint hWnd,uint hAfter,uint x,uint y,uint cx,uint cy,uint flags);
        [DllImport("kernel32.dll")]
        public static extern uint GetConsoleWindow();
        [DllImport("user32.dll")]
        public static extern bool GetWindowRect(uint hwnd, ref RECT rect);
        [DllImport("user32.dll")]
        public static extern uint GetDC(uint hwnd);
        [DllImport("gdi32.dll")]
        public static extern uint GetDeviceCaps(uint hdc, int index);

        public static uint[] GetScreen(){
            uint[] arr = {0,0};
            uint hdc = GetDC(0);
            arr[0] = GetDeviceCaps(hdc,118);
            arr[1] = GetDeviceCaps(hdc,117);
            return arr;
        }
    }
'@
Add-Type -TypeDefinition $code

#获取记事本窗口句柄
#$hwnd = (Get-Process 'notepad')[0].MainWindowHandle
#获取窗口信息
$rect = New-Object 'RECT'
[void][WinApi]::GetWindowRect([int]$hwnd,[ref]$rect)
$screen = [WinApi]::GetScreen()
#计算水平居中坐标
#$x = ($screen[0] - ($rect.right - $rect.left))/2
#设置记事本水平居中
$a=Get-Process 'WeChat'
while($i++ -le $a.count){
 $hwnd = $a[$i-1].MainWindowHandle
 [WinApi]::SetWindowPos([int]$hwnd,$null,$i*100,$i*100,0,0,1)
}
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#获取记事本窗口句柄
$a=Get-Process 'WeChat'
$hwnd = $a[0].MainWindowHandle
#获取窗口信息
$rect = New-Object 'RECT'
[void][WinApi]::GetWindowRect([int]$hwnd,[ref]$rect)
$screen = [WinApi]::GetScreen()
$mw=$rect.right - $rect.left
#计算水平居中坐标
$x=($screen[0]-$mw*$a.count)/2
$y = ($screen[1] - ($rect.bottom - $rect.top))/2
#设置记事本水平居中
while($i++ -lt $a.count){
 $hwnd = $a[$i-1].MainWindowHandle
 [WinApi]::SetWindowPos([int]$hwnd,$null,$x,$y,0,0,1)
 $x+=$mw
}
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1 .. 3 |
foreach{
	start C:\"Program Files (x86)"\Tencent\WeChat\WeChat.exe
}
while ($j -ne 3)
{
	sleep 1
	if ($j -ne $null) { rv j }
	ps wechat |
	ForEach{
		if (!($_.mainwindowtitle -eq ''))
		{
			$j++
		}
	}
}

Add-Type @'
    using System.Runtime.InteropServices;
    public struct RECT{ 
        public uint left;
        public uint top;
        public uint right;
        public uint bottom;
    }
    public static class WinApi{
        [DllImport("user32.dll")]
        public static extern bool SetWindowPos(uint hWnd,uint hAfter,uint x,uint y,uint cx,uint cy,uint flags);
        [DllImport("user32.dll")]
        public static extern bool GetWindowRect(uint hwnd, ref RECT rect);
    }
'@

#获取记事本窗口句柄
$a = Get-Process 'WeChat'
$hwnd = $a[0].MainWindowHandle

#获取窗口信息
$rect = New-Object 'RECT'
[void][WinApi]::GetWindowRect([int]$hwnd, [ref]$rect)
$screen_w = [Windows.Forms.Screen]::PrimaryScreen.WorkingArea.Width
$screen_h = [Windows.Forms.Screen]::PrimaryScreen.WorkingArea.Height
$mw = $rect.right - $rect.left

#计算水平居中坐标
$x = ($screen_w - $mw * $a.count)/2
$y = ($screen_h - ($rect.bottom - $rect.top))/2

#设置记事本水平居中
while ($i++ -lt $a.count)
{
	$hwnd = $a[$i - 1].MainWindowHandle
	[WinApi]::SetWindowPos([int]$hwnd, $null, $x, $y, 0, 0, 1)
	$x += $mw
}
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#计算水平居中坐标
$x = ($screen_w - $mw * $a.count)/($a.count-1)
$y = ($screen_h - ($rect.bottom - $rect.top))/2

#设置记事本水平居中
while ($i++ -lt $a.count)
{
	$hwnd = $a[$i - 1].MainWindowHandle
	[WinApi]::SetWindowPos([int]$hwnd, $null, $xx, $y, 0, 0, 1)
	$xx = $xx+$x+$mw
}
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