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Title: GetClipboardText
Post by: xroot on November 14, 2007, 09:10:53 PM

In the Masmlib.chm help file shows "GetClipboardText" as a function.
I have the m32v9r.zip and it is not there.
Can someone tell me how to get this function, or maybe
a new m32lib file update.
Thanks

Title: Re: GetClipboardText
Post by: ragdog on November 14, 2007, 10:05:48 PM

hi

try this

Code Select


GetClipboardText proc lpszBuffer:dword
LOCAL hMemObj:dword
LOCAL dwMemLen:dword
LOCAL hMemPtr:dword

   invoke IsClipboardFormatAvailable, CF_TEXT
   .if (eax)
       invoke OpenClipboard, NULL
       .if (eax)
           invoke GetClipboardData, CF_TEXT
           .if (eax)
               mov hMemObj, eax
               invoke GlobalSize, hMemObj
               .if (eax)
                   mov dwMemLen, eax
                   invoke GlobalLock, hMemObj
                   .if (eax)
             
                       mov hMemPtr, eax
                       invoke RtlMoveMemory, lpszText, hMemPtr, dwMemLen
                       invoke GlobalUnlock, hMemObj
                   .endif
               .endif
           .endif
           invoke CloseClipboard
       .endif
   .endif
   ret
GetClipboardText endp

greets
ragdog

Title: Re: GetClipboardText
Post by: hutch-- on November 14, 2007, 10:37:48 PM

xroot,

Here are the two masm32 library modules.

Code Select


; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

    .486                      ; maximum processor model
    .model flat, stdcall      ; memory model & calling convention
    option casemap :none      ; case sensitive

    include \masm32\include\windows.inc
    include \masm32\include\masm32.inc
    include \masm32\include\user32.inc
    include \masm32\include\kernel32.inc
    include \masm32\macros\macros.asm

    GetClipboardText PROTO

    .code       ; code section

; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

OPTION PROLOGUE:NONE 
OPTION EPILOGUE:NONE 

GetClipboardText proc

    push ebx
    push esi
    push edi

    ; --------------------------------------------------------
    ; if the return value is not zero, deallocate the returned
    ; memory handle with GlobalFree() or the macro "free" when
    ; the data is no longer required.
    ; --------------------------------------------------------
    invoke OpenClipboard,NULL                   ; open clipboard
    .if rv(IsClipboardFormatAvailable,CF_TEXT) != 0 ; if text available
      invoke GetClipboardData,CF_TEXT           ; get pointer to text
      mov ebx, eax
      invoke StrLen,eax                         ; get text length
      mov esi, eax
      mov edi, alloc(esi)                       ; allocate that much memory
      cst edi, ebx
      invoke CloseClipboard                     ; close the clipboard
      mov eax, edi                              ; return memory handle
      jmp bye
    .else                                       ; else
      xor eax, eax                              ; set return to zero
      invoke CloseClipboard                     ; close the clipboard
      jmp bye
    .endif

  bye:
    pop edi
    pop esi
    pop ebx

    ret

GetClipboardText endp

OPTION PROLOGUE:PrologueDef 
OPTION EPILOGUE:EpilogueDef 

; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

end


; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

    .486                      ; maximum processor model
    .model flat, stdcall      ; memory model & calling convention
    option casemap :none      ; case sensitive

    include \masm32\include\windows.inc
    include \masm32\include\masm32.inc
    include \masm32\include\user32.inc
    include \masm32\include\kernel32.inc
    include \masm32\macros\macros.asm

    SetClipboardText PROTO :DWORD

    .code       ; code section

; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

SetClipboardText proc ptxt:DWORD

    LOCAL hMem  :DWORD
    LOCAL pMem  :DWORD
    LOCAL slen  :DWORD

    invoke StrLen, ptxt                         ; get length of text
    mov slen, eax
    add slen, 64

    invoke GlobalAlloc,GMEM_MOVEABLE or \
           GMEM_DDESHARE,slen                   ; allocate memory
    mov hMem, eax
    invoke GlobalLock,hMem                      ; lock memory
    mov pMem, eax

    cst pMem, ptxt                              ; copy text to allocated memory

    invoke OpenClipboard,NULL                   ; open clipboard
    invoke SetClipboardData,CF_TEXT,pMem        ; write data to it
    invoke CloseClipboard                       ; close clipboard

    invoke GlobalUnlock,hMem                    ; unlock memory
    invoke GlobalFree,hMem                      ; deallocate memory

    ret

SetClipboardText endp

; Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«Â«

end

Title: Re: GetClipboardText
Post by: Faiseur on April 23, 2010, 09:49:58 PM

Hello Hutch,

I tried both modules in masm32 library, unfortunately it does not work properly.

Here are the problems I noted:

1. In "GetClipboardText":

If sClipboardFormatAvailable returns an error (this is not text), CloseClipboard function succeeds, the return value is nonzero, not 0. Ie there will never return error. OpenClipboard should be placed next.

2. In "SetClipboardText"

It seems necessary to use EmptyClipboard before writing with SetClipboardData, otherwise it does not work.

Regards

Title: Re: GetClipboardText
Post by: jj2007 on April 24, 2010, 12:07:35 AM

Quote from: Faiseur on April 23, 2010, 09:49:58 PM
It seems necessary to use EmptyClipboard before writing with SetClipboardData, otherwise it does not work.

A snippet for testing the ret values. Afaik the global memory should not be freed.

Code Select

include \masm32\include\masm32rt.inc

printnum MACRO arg, text
LOCAL tmp$
  pushad
  print str$(arg), 9
  print reparg(text), 13, 10
  popad
ENDM

.code
MyText	db "Hello Masm32", 0

start:
	invoke OpenClipboard, 0
	invoke EmptyClipboard
	printnum eax, "Open"
	invoke GlobalAlloc, GMEM_MOVEABLE or GMEM_DDESHARE, sizeof MyText+1
	printnum eax, "Alloc"
	mov ebx, eax
	invoke GlobalLock, eax
	push eax
	printnum eax, "Lock"
	invoke lstrcpy, eax, offset MyText
	printnum eax, "lstrcpy"
	mov eax, [esp]
	invoke GlobalUnlock, eax
	printnum eax, "Unlock"
	pop eax
	invoke SetClipboardData, CF_TEXT, eax
	printnum eax, "SetClipboardData"
	invoke CloseClipboard
	printnum eax, "CloseClipboard"
	exit
end start

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General Forums => The Workshop => Topic started by: xroot on November 14, 2007, 09:10:53 PM