C# Signature:

[DllImport("gdi32.dll")]
static extern int SetBkMode(IntPtr hdc, int iBkMode);

VB.NET Signature

<DllImport("gdi32.dll", SetLastError:=True)> _
Public Function SetBkMode(hdc As IntPtr, <MarshalAs(UnmanagedType.I4)>iBkMode As gdiBkMode) As Integer
End Function

VB Signature

Public Declare Function SetBkMode Lib "gdi32.dll" _
        (ByVal prmlngHDc As Long, _
         ByVal ColorRef As Integer) As Integer

Constants:

const int TRANSPARENT = 1;
const int OPAQUE = 2;

User-Defined Types:

VB.NET

Public Enum gdiBkMode As Integer
    TRANSPARENT = 1
    OPAQUE = 2
end Enum

Notes:

None.

Tips & Tricks:

Please add some!

Notes:

None.

Sample Code:

Tips & Tricks:

Please add some!

Alternative Managed API:

Sample Code:

Please add some!

Alternative Managed API:

If you are using GDI+ with a Graphics object, you don't need the use of this method anymore. If you want a transparent background just call

    g.Clear(Color.White);

Good luck and have fun https://www.pinvoke.net/emoticons/wink_smile.gif (Julian Taupe)

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).