C# Signature:

[DllImport("gdi32.dll")]
static extern IntPtr CreatePen(int fnPenStyle, int nWidth, uint crColor);

The first argument specifies a pen style defined in the header. A value from enum PenStyle below can be used to fake the defined value.

[DllImport("gdi32.dll")]
static extern IntPtr CreatePen(PenStyle fnPenStyle, int nWidth, uint crColor);

User-Defined Types:

public enum PenStyle

{

    PS_SOLID        = 0, //The pen is solid.
    PS_DASH         = 1, //The pen is dashed.
    PS_DOT          = 2, //The pen is dotted.
    PS_DASHDOT      = 3, //The pen has alternating dashes and dots.
    PS_DASHDOTDOT       = 4, //The pen has alternating dashes and double dots.
    PS_NULL         = 5, //The pen is invisible.
    PS_INSIDEFRAME      = 6,
    PS_USERSTYLE    = 7,
    PS_ALTERNATE    = 8,
    PS_STYLE_MASK       = 0x0000000F,

    PS_ENDCAP_ROUND     = 0x00000000,
    PS_ENDCAP_SQUARE    = 0x00000100,
    PS_ENDCAP_FLAT      = 0x00000200,
    PS_ENDCAP_MASK      = 0x00000F00,

    PS_JOIN_ROUND       = 0x00000000,
    PS_JOIN_BEVEL       = 0x00001000,
    PS_JOIN_MITER       = 0x00002000,
    PS_JOIN_MASK    = 0x0000F000,

    PS_COSMETIC     = 0x00000000,
    PS_GEOMETRIC    = 0x00010000,
    PS_TYPE_MASK    = 0x000F0000

};

Notes:

None.

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