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How to link to a dll in vb.netlink to it. It is called PerlinDLL.dll and is a dll that spits out a bitmap of a fractal image.(link: http://www.stanford.edu/~jjshed/perlin/index.html ) I do have the code that I believe allows a C# program hook to it, but I do not know how to do it in VB.NET. Where does the dll need to reside? system32 directory? My programs bin directory? Here is the C# code: [DllImport("PerlinDLL.dll")] static extern unsafe void TestBMP(void* ARGB32_pixels, int w, int h); [DllImport("PerlinDLL.dll")] static extern unsafe void GeneratePerlinTexture(void *ARGB32_pixels, int w, int h); [DllImport("PerlinDLL.dll")] static extern void SetPerlinVars(float init_freq, float init_amp, float persistance, int octaves, int random_seed); [DllImport("PerlinDLL.dll")] static extern void SetLinearInterpolation(); [DllImport("PerlinDLL.dll")] static extern void SetCosineInterpolation(); [DllImport("PerlinDLL.dll")] static extern void SetCubicInterpolation(); [DllImport("PerlinDLL.dll")] static extern void InitializePalette(int r1, int g1, int b1, int r2, int g2, int b2); [DllImport("PerlinDLL.dll")] static extern void AddColor(float pos, int r, int g, int b); [DllImport("PerlinDLL.dll")] static extern int GetColor(float f); [DllImport("PerlinDLL.dll")] static extern void SetClampAbs(); [DllImport("PerlinDLL.dll")] static extern void SetClampTruncate(); [DllImport("PerlinDLL.dll")] static extern void SetClampNormalize(); [DllImport("PerlinDLL.dll")] static extern void SetOutputFlat(); [DllImport("PerlinDLL.dll")] static extern void SetOutputTileable(); [DllImport("PerlinDLL.dll")] static extern void SetOutputSphereMapped(); What is the vb.net equivilant? Thank you so much! Chris Hi,
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcn7/html/vaconCallingWindowsAPIs.asp Ken -------------- "Chris" <j**@shmoe.com> wrote in message I have a DLL that I would like to use in VB.NET but I am not sure how tonews:Ob1O36OfFHA.3904@TK2MSFTNGP14.phx.gbl... link to it. It is called PerlinDLL.dll and is a dll that spits out a bitmap of a fractal image.(link: http://www.stanford.edu/~jjshed/perlin/index.html ) I do have the code that I believe allows a C# program hook to it, but I do not know how to do it in VB.NET. Where does the dll need to reside? system32 directory? My programs bin directory? Here is the C# code: [DllImport("PerlinDLL.dll")] static extern unsafe void TestBMP(void* ARGB32_pixels, int w, int h); [DllImport("PerlinDLL.dll")] static extern unsafe void GeneratePerlinTexture(void *ARGB32_pixels, int w, int h); [DllImport("PerlinDLL.dll")] static extern void SetPerlinVars(float init_freq, float init_amp, float persistance, int octaves, int random_seed); [DllImport("PerlinDLL.dll")] static extern void SetLinearInterpolation(); [DllImport("PerlinDLL.dll")] static extern void SetCosineInterpolation(); [DllImport("PerlinDLL.dll")] static extern void SetCubicInterpolation(); [DllImport("PerlinDLL.dll")] static extern void InitializePalette(int r1, int g1, int b1, int r2, int g2, int b2); [DllImport("PerlinDLL.dll")] static extern void AddColor(float pos, int r, int g, int b); [DllImport("PerlinDLL.dll")] static extern int GetColor(float f); [DllImport("PerlinDLL.dll")] static extern void SetClampAbs(); [DllImport("PerlinDLL.dll")] static extern void SetClampTruncate(); [DllImport("PerlinDLL.dll")] static extern void SetClampNormalize(); [DllImport("PerlinDLL.dll")] static extern void SetOutputFlat(); [DllImport("PerlinDLL.dll")] static extern void SetOutputTileable(); [DllImport("PerlinDLL.dll")] static extern void SetOutputSphereMapped(); What is the vb.net equivilant? Thank you so much! Chris 
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