Creating/Switching Desktop in C#/.Net
I'm currently using the CreateDesktop native C function and calling it in my C# code to create and switch between desktops. Is there any way to do this using the Process class or any c#/.Net class for that matter?
This is the sample code i'm using in my class now for Desktop switching.
[Flags]
public enum AccessRight : uint
{
DESKTOP_READOBJECTS = 0x00000001,
DESKTOP_CREATEWINDOW = 0x00000002,
DESKTOP_CREATEMENU = 0x00000004,
DESKTOP_HOOKCONTROL = 0x00000008,
DESKTOP_JOURNALRECORD = 0x00000010,
DESKTOP_JOURNALPLAYBACK = 0x00000020,
DESKTOP_ENUMERATE = 0x00000040,
DESKTOP_WRITEOBJECTS = 0x00000080,
DESKTOP_SWITCHDESKTOP = 0x00000100,
GENERIC_ALL = 开发者_开发问答(DESKTOP_READOBJECTS | DESKTOP_CREATEWINDOW | DESKTOP_CREATEMENU |
DESKTOP_HOOKCONTROL | DESKTOP_JOURNALRECORD | DESKTOP_JOURNALPLAYBACK |
DESKTOP_ENUMERATE | DESKTOP_WRITEOBJECTS | DESKTOP_SWITCHDESKTOP)
};
[Flags]
public enum AccountHook
{
Allow = 1,
Disallow = 0
};
public enum HandleInheritance
{
Inherit,
None
};
[StructLayout(LayoutKind.Sequential)]
public struct SecAttrib
{
public int nLength;
public IntPtr lpSecurityDescriptor;
public int bInheritHandle;
}
[DllImport("user32.dll")]
public static extern IntPtr OpenDesktop(string lpszDesktop,
uint dwFlags,
bool fInherit,
uint dwDesiredAccess);
[DllImport("user32.dll")]
public static extern bool SwitchDesktop(IntPtr hDesktop);
[DllImport("user32.dll")]
public static extern IntPtr CreateDesktop(string lpszDesktop,
IntPtr lpszDevice,
IntPtr pDevmode,
int dwFlags,
uint dwDesiredAccess,
IntPtr lpsa);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr OpenInputDesktop(uint dwFlags, bool fInherit,
uint dwDesiredAccess);
[DllImport("user32.dll", EntryPoint = "CloseDesktop", CharSet = CharSet.Unicode, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool CloseDesktop(IntPtr handle);
There is no built-in desktop switching class/methods in .net framework.
Here is Desktop Switching example which uses native windows API's.
If there is any .net framework class/method for desktop switching, they would use/wrap a same API's as your example or example from codeproject i mentioned.
Here is one more example with little different approach: Multiple desktop support in Windows
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