Search
Module:
Directory

   Desktop Functions:

   Smart Device Functions:


Show Recent Changes
Subscribe (RSS)
Misc. Pages
Comments
FAQ
Helpful Tools
Playground
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
setwindowplacement (user32)
 
.
Summary

C# Signature:

/// <summary>
/// Sets the show state and the restored, minimized, and maximized positions of the specified window.
/// </summary>
/// <param name="hWnd">
/// A handle to the window.
/// </param>
/// <param name="lpwndpl">
/// A pointer to a WINDOWPLACEMENT structure that specifies the new show state and window positions.
/// <para>
/// Before calling SetWindowPlacement, set the length member of the WINDOWPLACEMENT structure to sizeof(WINDOWPLACEMENT). SetWindowPlacement fails if the length member is not set correctly.
/// </para>
/// </param>
/// <returns>
/// If the function succeeds, the return value is nonzero.
/// <para>
/// If the function fails, the return value is zero. To get extended error information, call GetLastError.
/// </para>
/// </returns>
[DllImport("user32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetWindowPlacement(IntPtr hWnd,
   [In] ref WINDOWPLACEMENT lpwndpl);

VB.NET Signature:

<DllImport("user32.dll")> _
Public Shared Function SetWindowPlacement( _
     ByVal hWnd As IntPtr, _
     ByRef lpwndpl As WINDOWPLACEMENT) As Boolean
End Function

VB Signature

Public Declare Function SetWindowPlacement Lib "user32" _
         (ByVal hWnd As Long, _
          ByRef lpwndpl As WINDOWPLACEMENT) As Long

User-Defined Types:

WINDOWPLACEMENT.

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

//Import the DLL
[DllImport("user32.dll")]
static extern bool SetWindowPlacement(IntPtr hWnd,
[In] ref WINDOWPLACEMENT lpwndpl);

  //Definition for Window Placement Structure
  [StructLayout(LayoutKind.Sequential)]        
  private struct WINDOWPLACEMENT
       {
    public int length;
    public int flags;
    public int showCmd;
    public System.Drawing.Point ptMinPosition;
    public System.Drawing.Point ptMaxPosition;
    public System.Drawing.Rectangle rcNormalPosition;
    }


   //Definitions For Different Window Placement Constants
       const UInt32 SW_HIDE =     0;
       const UInt32 SW_SHOWNORMAL =       1;
       const UInt32 SW_NORMAL =       1;
       const UInt32 SW_SHOWMINIMIZED =    2;
       const UInt32 SW_SHOWMAXIMIZED =    3;
       const UInt32 SW_MAXIMIZE =     3;
       const UInt32 SW_SHOWNOACTIVATE =   4;
       const UInt32 SW_SHOW =     5;
       const UInt32 SW_MINIMIZE =     6;
       const UInt32 SW_SHOWMINNOACTIVE =  7;
       const UInt32 SW_SHOWNA =       8;
       const UInt32 SW_RESTORE =      9;

WINDOWPLACEMENT param = new WINDOWPLACEMENT();

param.length = Marshal.SizeOf(typeof(WINDOWPLACEMENT));

param.showCmd = 1; //SW_SHOWNORMAL

SetWindowPlacement(this.Handle, ref param);

Alternative Managed API:

The ManagedWindowsApi project (http://mwinapi.sourceforge.net) provides a

class ManagedWinapi.SystemWindow that has a Position property.

Documentation

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

 
Access PInvoke.net directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version
Revisions