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Hi, how would you get a list of files in a directory using the Win32 API? Which function would be used to do that, sort of like the way the Genesis Emulator Genecyst did.

Posted on 2003-08-18 20:29:51 by x86asm

Function to get list of files

Here is a fragment from my File Compare program:



   LOCAL find          :WIN32_FIND_DATA



   ...





        invoke szCatStr, DirPath, CStr("*.*")

        mov TEMPA, $invoke( FindFirstFile, DirPath, addr find )

        @@:

        lea eax, find.cFileName

        mov eax, [eax]

        and eax, 0FFh

        .if( eax == '.' )

            invoke FindNextFile, TEMPA, addr find

            .if( !eax )

                jmp @EmptyDir

            .endif

            jmp @B

        .endif

        

        xor esi, esi

        .while (esi == NULL)            



            ; find == structure with next file info in it (name, etc)



            invoke FindNextFile, TEMPA, addr find

            .if( ! eax ) 

                inc esi

            .endif            

        .endw

    

    @EmptyDir:

        invoke FindClose, TEMPA

Hope this helps... Some credit to Donkey to help work out the 'bumps' ;)
:NaN:

Posted on 2003-08-18 21:56:45 by NaN

Function to get list of files



.data

W32FD	WIN32_FIND_DATA  < 0 >

szPath	db	"c:\windows\*",0

.code

		call	FindFirst

		jmp	ExitProcess

FindFirst:						;

	invoke FindFirstFile, addr szPath, addr W32FD 	; call API

	cmp  eax, -1					; 

	je   NtRet					; Exit

       	mov  esi, eax			 	        ; esi->hFindFirstFile

FileOrDir:						;

     	test W32FD.dwFileAttributes, FILE_ATTRIBUTE_DIRECTORY

	jne  ProcessFolder			        ; it is a directory 

;ProcessFile:						;

	push  esi					; save esi

	;do something with the file name		; 

	pop  esi					; restore esi

Find_Next:						; 

	invoke FindNextFile, esi, addr W32FD	        ; call API

       	test   eax, eax				        ; 

	jnz    FileOrDir				;

	invoke FindClose, esi			        ; call API

NtRet:							;

	ret						; Exit

ProcessFolder:					        ; Process Directory

	cmp W32FD.dwFileAttributes, FILE_ATTRIBUTE_DIRECTORY

     	jne Find_Next 					; we'll skip all hidden, system etc. dirs

	cmp byte ptr  [W32FD.cFileName], 2Eh		; Check for "." or ".." dir name

       	jne ProcessDir 					;

	cmp byte ptr  [W32FD.cFileName+1], 0		; 

       	je  Find_Next   				; it is ".",0 dir name -> skip it

       	cmp word ptr [W32FD.cFileName+1], 2Eh           ; 2Eh-> "." ASCII code

       	je  Find_Next 					; it is "..",0 dir name -> skip it

ProcessDir:						;

	push esi					; save esi 

	;do something with the directory name	        ;

	pop  esi					; restore esi		

	jmp  Find_Next					;

Posted on 2003-08-19 14:06:56 by lingo12

Function to get list of files

How would you know if you have searched through all files in the directory will the function call fail?

Posted on 2003-08-19 16:32:19 by x86asm

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