News:

MASM32 SDK Description, downloads and other helpful links
MASM32.com New Forum Link
masmforum WebSite

How write the data from the buffer

Started by stanley, October 26, 2009, 11:47:31 PM

Previous topic - Next topic

stanley

I have posted the code below,in which Unable to write data from the buffer  to the newly created file,so kindly help me to troubleshoot the problem.
and please explain me the mistake in the code
//------------------------------------------------------------------------------//
.386
.model flat, stdcall
option casemap:none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
include \masm32\include\user32.inc
include \masm32\include\advapi32.inc
includelib \masm32\lib\user32.lib
includelib \masm32\lib\kernel32.lib
includelib \masm32\lib\advapi32.lib
.data
slog db "c:\ip1.txt",0
wbuff db "Is This visible",0
.data?
hfile dd ?
.code
start:
invoke DeleteFile,addr slog
invoke CreateFile,addr slog,GENERIC_WRITE,FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL
mov hfile,eax
invoke WriteFile,addr slog,addr wbuff,500,NULL,NULL
mov hfile,eax
invoke CloseHandle,hfile
ret
end start
//------------------------------------------------------------------------------//






jj2007

It would help a lot if you invested a minimal effort in reading the documentation. You will not get very far with that attitude.

start:
;invoke DeleteFile,addr slog not needed
invoke CreateFile,addr slog,GENERIC_WRITE,FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL
mov hfile,eax
invoke WriteFile,eax,addr wbuff,15,offset BytesWritten,NULL  ; 15, not 500
;mov hfile,eax you are not getting a handle here...!
invoke CloseHandle,hfile

stanley

Quote from: jj2007 on October 27, 2009, 12:01:19 AM
It would help a lot if you invested a minimal effort in reading the documentation. You will not get very far with that attitude.

start:
;invoke DeleteFile,addr slog not needed
invoke CreateFile,addr slog,GENERIC_WRITE,FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL
mov hfile,eax
invoke WriteFile,eax,addr wbuff,15,offset BytesWritten,NULL  ; 15, not 500
;mov hfile,eax you are not getting a handle here...!
invoke CloseHandle,hfile


Thanks " jj2007 " i got it