目标是
我想更改在win xp上运行的某些应用程序(目标)的不透明度。
情况
问题和我的问题
SetWindowLong
& SetLayeredWindowAttributes
不适用于以其他用户帐户身份运行的目标应用程序。但它适用于在同一用户帐户(已记录的用户帐户)下运行的目标应用程序
如何更改以不同用户帐户身份运行的其他应用窗口不透明度?
插图应用
这是一个win form应用程序(我们称之为OpaciToggler.exe)。我有2个按钮(btnRunSomething和btnHideThatThing)和一个文本框(txtPid)。就如此容易。
当我点击btnRunSomething时,它会以不同的用户身份运行.exe。所有细节都在app.config中。在这种情况下,我运行此应用程序(OpaciToggler.exe,来自debug / bin)作为不同的用户(localComputer \ user1)
txtPid用于手动输入pid。通常我打开任务管理器(win> run> taskmgr)并找到我要测试的任何应用程序(目标)的pid(在进程选项卡下),然后在此处输入。
当我点击btnHideThatThing时,它会切换目标应用程序的不透明度(其pid在txtPid中)
代码C#
这就是我调用目标应用的方式。
private void btnRunSomething_Click(object sender, EventArgs e)
{
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.Domain = ConfigurationManager.AppSettings["StartInfoDomain"];
p.StartInfo.UserName = ConfigurationManager.AppSettings["StartInfoUserName"];
p.StartInfo.FileName = ConfigurationManager.AppSettings["StartInfoFileName"];
p.StartInfo.Arguments = ConfigurationManager.AppSettings["StartInfoArguments"];
System.String rawPassword = ConfigurationManager.AppSettings["StartInfoPassword"];
System.Security.SecureString encPassword = new System.Security.SecureString();
foreach (System.Char c in rawPassword)
{
encPassword.AppendChar(c);
}
p.StartInfo.Password = encPassword;
p.StartInfo.UseShellExecute = false;
p.Start();
}
这就是我尝试调用不透明度的方法
private void btnHideThatThing_Click(object sender, EventArgs e)
{
// manual input pid
int pid = int.Parse(txtPid.Text);
IntPtr mwh = Process.GetProcessById(pid).MainWindowHandle;
doHideThing(mwh);
// doHideThing(Process.GetProcessById(int.Parse(txtPid.Text)).MainWindowHandle);
}
隐藏方法
private void doHideThing(IntPtr hndl)
{
SetWindowLong(hndl, GWL_EXSTYLE, GetWindowLong(hndl, GWL_EXSTYLE) ^ WS_EX_LAYERED).ToString();
// _whatNow = Marshal.GetLastWin32Error();
SetLayeredWindowAttributes(hndl, 0, (255 * 20) / 100, LWA_ALPHA).ToString();
// _whatNow = Marshal.GetLastWin32Error();
RedrawWindow(hndl, IntPtr.Zero, IntPtr.Zero,
RedrawWindowFlags.Erase | RedrawWindowFlags.Invalidate |
RedrawWindowFlags.Frame | RedrawWindowFlags.AllChildren);
}
其他代码
private const int GWL_EXSTYLE = -20;
private const int GWL_STYLE = -16;
private const int WS_EX_LAYERED = 0x80000;
private const int LWA_ALPHA = 0x2;
private const int LWA_COLORKEY = 0x1;
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
[DllImport("user32.dll", SetLastError = true)]
static extern bool RedrawWindow(IntPtr hWnd, IntPtr lprcUpdate, IntPtr hrgnUpdate, RedrawWindowFlags flags);
RedrawWindowFlags枚举(我不记得我从哪里得到这个)
[Flags()]
enum RedrawWindowFlags : uint
{
/// <summary>
/// Invalidates the rectangle or region that you specify in lprcUpdate or hrgnUpdate.
/// You can set only one of these parameters to a non-NULL value. If both are NULL, RDW_INVALIDATE invalidates the entire window.
/// </summary>
Invalidate = 0x1,
/// <summary>Causes the OS to post a WM_PAINT message to the window regardless of whether a portion of the window is invalid.</summary>
InternalPaint = 0x2,
/// <summary>
/// Causes the window to receive a WM_ERASEBKGND message when the window is repainted.
/// Specify this value in combination with the RDW_INVALIDATE value; otherwise, RDW_ERASE has no effect.
/// </summary>
Erase = 0x4,
/// <summary>
/// Validates the rectangle or region that you specify in lprcUpdate or hrgnUpdate.
/// You can set only one of these parameters to a non-NULL value. If both are NULL, RDW_VALIDATE validates the entire window.
/// This value does not affect internal WM_PAINT messages.
/// </summary>
Validate = 0x8,
NoInternalPaint = 0x10,
/// <summary>Suppresses any pending WM_ERASEBKGND messages.</summary>
NoErase = 0x20,
/// <summary>Excludes child windows, if any, from the repainting operation.</summary>
NoChildren = 0x40,
/// <summary>Includes child windows, if any, in the repainting operation.</summary>
AllChildren = 0x80,
/// <summary>Causes the affected windows, which you specify by setting the RDW_ALLCHILDREN and RDW_NOCHILDREN values, to receive WM_ERASEBKGND and WM_PAINT messages before the RedrawWindow returns, if necessary.</summary>
UpdateNow = 0x100,
/// <summary>
/// Causes the affected windows, which you specify by setting the RDW_ALLCHILDREN and RDW_NOCHILDREN values, to receive WM_ERASEBKGND messages before RedrawWindow returns, if necessary.
/// The affected windows receive WM_PAINT messages at the ordinary time.
/// </summary>
EraseNow = 0x200,
Frame = 0x400,
NoFrame = 0x800
}
示例,测试和测试结果
Instance1
实例2
再次,我的问题
如何更改以不同用户帐户身份运行的其他应用窗口不透明度?
谢谢并抱歉我的英语不好:(。