在 C# 中使用 SetWindowPos 来移动窗口
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Using SetWindowPos in C# to move windows around
提问by Matt
I have the code below:
我有下面的代码：
namespace WindowMover
{
using System.Windows.Forms;
static class Logic
{
[DllImport("user32.dll", EntryPoint = "SetWindowPos")]
public static extern IntPtr SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int x, int Y, int cx, int cy, int wFlags);
public static void Move()
{
const short SWP_NOMOVE = 0X2;
const short SWP_NOSIZE = 1;
const short SWP_NOZORDER = 0X4;
const int SWP_SHOWWINDOW = 0x0040;
Process[] processes = Process.GetProcesses(".");
foreach (var process in processes)
{
var handle = process.MainWindowHandle;
var form = Control.FromHandle(handle);
if (form == null) continue;
SetWindowPos(handle, 0, 0, 0, form.Bounds.Width, form.Bounds.Height, SWP_NOZORDER | SWP_SHOWWINDOW);
}
}
}
}
This is supposed to move every window on my desktop to 0,0 (x,y) and keep the same sizes. My problem is that only the calling app (built in C#) is getting moved.
这应该将我桌面上的每个窗口移动到 0,0 (x,y) 并保持相同的大小。我的问题是只有调用应用程序（内置在 C# 中）被移动。
Should I be using something else other than Control.FromHandle(IntPtr)? Will this only find dotnet controls? If so what should I use?
我应该使用 Control.FromHandle(IntPtr) 以外的其他东西吗？这只会找到 dotnet 控件吗？如果是这样，我应该使用什么？
Also, the second 0 in SetWindowPos was just a random int I stick in there, I'm not sure what to use for int hWndInsertAfter
此外，SetWindowPos 中的第二个 0 只是我坚持在那里的一个随机 int，我不确定用于 int hWndInsertAfter
What about processes with multiple windows like pidgin?
像 pidgin 这样具有多个窗口的进程呢？
采纳答案by Reed Copsey
Just take out your Control.FromHandle and the form == null check. You should be able to just do:
只需取出您的 Control.FromHandle 和 form == null 检查。你应该能够做到：
IntPtr handle = process.MainWindowHandle;
if (handle != IntPtr.Zero)
{
SetWindowPos(handle, 0, 0, 0, 0, 0, SWP_NOZORDER | SWP_NOSIZE | SWP_SHOWWINDOW);
}
If you add SWP_NOSIZE, it will not resize the window, but will still reposition it.
如果添加 SWP_NOSIZE，它不会调整窗口大小，但仍会重新定位它。
If you want to effect all windows, not just the main window, of each process, you might want to consider using P/Invoke withEnumWindowsinstead of iterating through the Process list and using MainWindowHandle.
如果您想影响每个进程的所有窗口，而不仅仅是主窗口，您可能需要考虑将P/Invoke 与EnumWindows一起使用，而不是遍历进程列表并使用 MainWindowHandle。
回答by Dagne
Played with this. See if it helps.
玩过这个。看看它是否有帮助。
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;
namespace ConsoleTestApp
{
class Program
{
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetForegroundWindow(IntPtr hWnd);
static void Main(string[] args)
{
Process[] processes = Process.GetProcesses();
foreach (var process in processes)
{
Console.WriteLine("Process Name: {0} ", process.ProcessName);
if (process.ProcessName == "WINWORD")
{
IntPtr handle = process.MainWindowHandle;
bool topMost = SetForegroundWindow(handle);
}
}
}
}
