vfw/Win32.cs

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namespace Tiger.Video.VFW
{
	using System;
	using System.Runtime.InteropServices;

	/// <summary>
	/// Windows API functions and structures
	/// </summary>
	internal class Win32
	{
		// --- AVI Functions

		// Initialize the AVIFile library
		[DllImport("avifil32.dll")]
		public static extern void AVIFileInit();

		// Exit the AVIFile library 
		[DllImport("avifil32.dll")]
		public static extern void AVIFileExit();

		// Open an AVI file
		[DllImport("avifil32.dll", CharSet=CharSet.Unicode)]
		public static extern int AVIFileOpen(
			out IntPtr ppfile,
			String szFile,
			OpenFileMode mode,
			IntPtr pclsidHandler);

		// Release an open AVI stream
		[DllImport("avifil32.dll")]
		public static extern int AVIFileRelease(
			IntPtr pfile);

		// Get address of a stream interface that is associated
		// with a specified AVI file
		[DllImport("avifil32.dll")]
		public static extern int AVIFileGetStream(
			IntPtr pfile,
			out IntPtr ppavi,
			int fccType,
			int lParam);

		// Create a new stream in an existing file and creates an interface to the new stream
		[DllImport("avifil32.dll")]
		public static extern int AVIFileCreateStream(
			IntPtr pfile,
			out IntPtr ppavi, 
			ref AVISTREAMINFO psi);

		// Release an open AVI stream
		[DllImport("avifil32.dll")]
		public static extern int AVIStreamRelease(
			IntPtr pavi);

		// Set the format of a stream at the specified position
		[DllImport("avifil32.dll")]
		public static extern int AVIStreamSetFormat(
			IntPtr pavi,
			int lPos, 
			ref BITMAPINFOHEADER lpFormat,