pinvoke.net: Edit: gdi32.CreateCompatibleDC

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Summary: The CreateCompatibleDC function creates a memory device context (DC) compatible with the specified device.

!!!!C# Signature:
 /// <summary>
 ///		Creates a memory device context (DC) compatible with the specified device.
 /// </summary>
 /// <param name="hdc">A handle to an existing DC. If this handle is NULL,
 ///		the function creates a memory DC compatible with the application's current screen.</param>
 /// <returns>
 ///		If the function succeeds, the return value is the handle to a memory DC.
 ///		If the function fails, the return value is <see cref="System.IntPtr.Zero"/>.
 /// </returns>
 [DllImport("gdi32.dll", EntryPoint = "CreateCompatibleDC", SetLastError=true)]
 static extern IntPtr CreateCompatibleDC([In] IntPtr hdc);

!!!!VB.NET Signature:
 <DllImport("gdi32.dll", SetLastError:=True)> _
 Private Shared Function CreateCompatibleDC(ByVal hRefDC As IntPtr) As IntPtr
 End Function

!!!!VB Signature:
 Private Declare Function CreateCompatibleDC Lib "gdi32.dll" (hdc As IntPtr) As IntPtr

!!!!Parameters:
hdc	Handle to an existing DC. If this handle is NULL, the function creates a memory DC compatible with the application's current screen.

!!!!Return Values:
If the function succeeds, the return value is the handle to a memory DC. If the function fails, the return value is NULL.

!!!!User-Defined Types:
None.

!!!!Notes:
None.

!!!!Tips & Tricks:
If you pass NULL, or zero, to this function you'll get the screen device context.

!!!!Sample Code:
Please see BitBlt

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: CreateCompatibleDC@msdn on MSDN