c#调用C++api参数对应

Question

GDI画条码，这还真没怎么耍过。

Answer 1

    using DWORD = Int32;
    using HDC = Int32;
    using LPWSTR = String;
    using LPRECT = Rectangle;    public partial class X32
    {
        [DllImport("Barcode.dll", CharSet = CharSet.Unicode)]
        static extern DWORD DrawBarcode(
            HDC hDc,
            [MarshalAs(UnmanagedType.LPWStr | UnmanagedType.VBByRefStr)] ref LPWSTR TEXT,
            [MarshalAs(UnmanagedType.LPWStr | UnmanagedType.VBByRefStr)] ref LPWSTR Starstopchar,
            [MarshalAs(UnmanagedType.LPWStr | UnmanagedType.VBByRefStr)] ref LPWSTR facename,
            [MarshalAs(UnmanagedType.LPWStr | UnmanagedType.VBByRefStr)] ref LPWSTR buffer,
            ref LPRECT bounds,
            ref LPRECT barcodematrix,
            int textwidth,
            int texheight,
            int textbobarcode,
            int textquiezone,
            int barinflate,
            DWORD color,
            DWORD @params
            );

Answer 2

HDC->DWORD->4BYTE->INT
WCHAR*->wchar_t*->LPWSTR->SYSINT
LPRECT->RECT*->SYSINT