How do i Buffer? (LB_GETTEXT)

[JasonLpz]

I have no clue how to STRING BUFFER for lets say a LB_GETTEXT, SendMessage API Read Below:

Can someone tell me whats wrong with this:

	case ID_GETLIST:
				{
					char *ListSel;
					PSTR ListStr;
					int x;

					x = SendMessage(list,LB_GETTEXTLEN,0,0);

					ListStr = (PSTR) VirtualAlloc((LPVOID) NULL, 
                    (DWORD) (x + 1), MEM_COMMIT, 
                    PAGE_READWRITE); 

					SendMessage(list,LB_GETTEXT,0,ListStr);
					//GetWindowText(edit, ListStr,x + 1);
					ListSel = ListStr;
					SetWindowText(edit,ListSel);

				}

i get this error but im not sure how to use a nuffer i hjust Copyed it and Pasted it
and then edited it. Is it correct?
Error

--------------------Configuration: Win32Controls - Win32 Debug--------------------
Compiling resources...
Compiling...
WinMain.cpp
E:\Files\w32sk\WinMain.cpp(159) : error C2664: 'SendMessageA' : cannot convert parameter 4 from 'char *' to 'long'
        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
Error executing cl.exe.

Win32Controls.exe - 1 error(s), 0 warning(s)

[twanvl]

As far as I can tell there is nothing wrong with this code. You need to use a cast:

SendMessage(list,LB_GETTEXT,0,(LPARAM)ListStr);

Also, don't forget to free the memory you allocated for the string. Use VirtualFree (since you used VirtualAlloc to allocate it)

[CornedBee]

Use HeapAlloc or new for such small amounts of memory, VirtualAlloc is meant for 16k and up.

I'm saying it again, you'd be better off with console.