C# Signature:
[DllImport("user32.dll")]
static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X,
int Y, int cx, int cy, uint uFlags);
VB Signature:
<DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function SetWindowPos(ByVal hWnd As IntPtr, _
ByVal hWndInsertAfter As IntPtr, _
ByVal X As Integer, _
ByVal Y As Integer, _
ByVal cx As Integer, _
ByVal cy As Integer, _
ByVal uFlags As UInt32) As Boolean
End Function
VB.NET Signature:
Declare Auto Function SetWindowPos Lib "user32" (ByVal hWnd As IntPtr, _
ByVal hWndInsertAfter As IntPtr, _
ByVal X As Integer, _
ByVal Y As Integer, _
ByVal cx As Integer, _
ByVal cy As Integer, _
ByVal uFlags As UInteger) As Boolean
User-Defined Types:
C#:
static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
static readonly IntPtr HWND_TOP = new IntPtr(0);
static readonly IntPtr HWND_BOTTOM = new IntPtr(1);
VB:
ReadOnly HWND_BOTTOM As New IntPtr(1)
ReadOnly HWND_NOTOPMOST As New IntPtr(-2)
ReadOnly HWND_TOP As New IntPtr(0)
ReadOnly HWND_TOPMOST As New IntPtr(-1)
// Values for the uFlags parameter
//From winuser.h
const UInt32 SWP_NOSIZE = 0x0001;
const UInt32 SWP_NOMOVE = 0x0002;
const UInt32 SWP_NOZORDER = 0x0004;
const UInt32 SWP_NOREDRAW = 0x0008;
const UInt32 SWP_NOACTIVATE = 0x0010;
const UInt32 SWP_FRAMECHANGED = 0x0020; /* The frame changed: send WM_NCCALCSIZE */
const UInt32 SWP_SHOWWINDOW = 0x0040;
const UInt32 SWP_HIDEWINDOW = 0x0080;
const UInt32 SWP_NOCOPYBITS = 0x0100;
const UInt32 SWP_NOOWNERZORDER = 0x0200; /* Don't do owner Z ordering */
const UInt32 SWP_NOSENDCHANGING = 0x0400; /* Don't send WM_WINDOWPOSCHANGING */
VB Conversion - If you want to paste into VB.
Shared ReadOnly SWP_NOSIZE As UInt32 = Convert.ToUInt32(&H1)
Shared ReadOnly SWP_NOMOVE As UInt32 = Convert.ToUInt32(&H2)
Shared ReadOnly SWP_NOZORDER As UInt32 = Convert.ToUInt32(&H4)
Shared ReadOnly SWP_NOREDRAW As UInt32 = Convert.ToUInt32(&H8)
Shared ReadOnly SWP_NOACTIVATE As UInt32 = Convert.ToUInt32(&H10)
Shared ReadOnly SWP_FRAMECHANGED As UInt32 = Convert.ToUInt32(&H20) '/* The frame changed: send WM_NCCALCSIZE */
Shared ReadOnly SWP_SHOWWINDOW As UInt32 = Convert.ToUInt32(&H40)
Shared ReadOnly SWP_HIDEWINDOW As UInt32 = Convert.ToUInt32(&H80)
Shared ReadOnly SWP_NOCOPYBITS As UInt32 = Convert.ToUInt32(&H100)
Shared ReadOnly SWP_NOOWNERZORDER As UInt32 = Convert.ToUInt32(&H200) '/* Don't do owner Z ordering */
Shared ReadOnly SWP_NOSENDCHANGING As UInt32 = Convert.ToUInt32(&H400) '/* Don't send WM_WINDOWPOSCHANGING */
Notes:
HWND_TOP will bring a window to the front of the Z-Order only if the thread is in the foreground. Otherwise it will bring the window to the front of the thread's Z-order.
Tips & Tricks:
In .NET you only need to call Me.TopMost = True
Sample Code:
Please add some!
Alternative Managed API:
Do you know one? Please contribute it!
