Pointers to arrays..? a[spaz][how_what][i]?

[Magiaus]

UINT ExtractIconEx(          
    LPCTSTR lpszFile,
    int nIconIndex,
    HICON *phiconLarge,
    HICON *phiconSmall,
    UINT nIcons
);

Okay, I have a pointer to an array of icons being passed out by phiconLarge, and phiconSmall. How do I move through the array?

I'm actually going to be trying to do this in C#

		#region Win32 API (UnManaged)
		[DllImport("User32")]
		private static extern bool DestroyIcon(          
				IntPtr hIcon
			);
		[DllImport("Shell32")]
		private static extern uint ExtractIconEx(          
			LPCTSTR lpszFile,
			int nIconIndex,
			IntPtr *phiconLarge,
			IntPtr *phiconSmall,
			uint nIcons
		);
		#endregion

Also, does anyone know the values for these. To retrieve the dimensions of the large and small icons, use the function with the SM_CXICON, SM_CYICON, SM_CXSMICON, and SM_CYSMICON flags.

	#region Bit Flag Enumerations
	/// <summary>
	/// To retrieve the dimensions of the large and small icons, use the function with the SM_CXICON, SM_CYICON, SM_CXSMICON, and SM_CYSMICON flags.
	/// </summary>
	[Flags]
	enum SM
	{
		SM_CXICON, 
		SM_CYICON, 
		SM_CXSMICON,  
		SM_CYSMICON 	
	}
	#endregion

I don't have the needed header on my system to look it up.

I know this could be an API or C# thread, but I thought who better to ask than the experts... On the C# side of things though. Will releaseing the System.Drawing.Icon I plan to load from my Icon Handle sufice or should I call DestroyIcon? Or could I say open the icon from the handle draw it into a new managed icon and then destroy the icon I first opened? I'm planning to Open the Icons and throw them into an ImageList.

[Magiaus]

anybody?

[aewarnick]

The best advice I can give you for getting the values of SM_CXICON and other defines is to create a very small c++ program just for that purpose. That's the way I did it when I programmed in c#. Download Dev-c++

I believe if you create a .net Icon from a HICON the .net Icon is a copy of the HICON and therefore you need to destroy both Icon and HICON. DestroyIcon for the HICON and the .net way for the Icon.

In c# I don't know how you would deal with an array of HICON's. I assume like you would in c++ use []- indexing.

[Magiaus]

Thx for the info. I don't know why I don't have all the headers avaliable I have vc7 installed..... I have them all in one of my stacks of cd's somewhere.

I have never made a c++ project that was complex enough to have pointers to arrays so I wasn't sure if it was [accessor] or if you had to create an object of some kind from the pointer to access the memory. I was trying to decied if I needed to byte shift or not. I know bit shifting a pointer can behave in strange ways.

I'm still getting the hang of DllImport also; it is a bit tricky. Some things you have to explicitly set IDL for type conversion and in/out some you don't...