documentacion de funciones gdi+

documentacion de funciones gdi+

Postby mastintin » Wed Nov 19, 2014 10:48 am

Revisando en la wiki las funciones gdi+ veo que no estan documentadas pero ademas sus nombres no corresponden con las funciones que aparecen en la clase tgdiplus. Por otro lado las funciones que estan en tgdiplus ¿ en que archivo se encuentran de la api ? . He revisado los libs y tampoco aparecen ¿? . Sería bueno completar un poco mas la clase tgdiplus ...
Saludos.
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby Antonio Linares » Wed Nov 19, 2014 10:58 am

Manuel,

gdiplus.cpp (ojo que es C++)
Code: Select all  Expand view
// GdiPlus support (c) FiveTech Software

#include <hbapi.h>
#include <windows.h>
#include <gdiplus.h>

using namespace Gdiplus;

GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR   gdiplusToken;

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSNEWGRAPHICS )
{
   hb_retnl( ( HB_LONG ) new Graphics( ( HDC ) hb_parnl( 1 ) ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDELETEGRAPHICS )
{
   delete ( ( Graphics * ) hb_parnl( 1 ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSHIGHQUALITY )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );

   graphics->SetSmoothingMode( SmoothingModeHighQuality );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSNORMALQUALITY )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );

   graphics->SetSmoothingMode( SmoothingModeDefault );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSNEWPEN )
{
     Color clr = Color( hb_parnl( 1 ), hb_parnl( 2 ), hb_parnl( 3 ), hb_parnl( 4 ) );

   hb_retnl( ( HB_LONG ) new Pen( clr ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSPENSIZE )
{
   Pen * pen = ( Pen * ) hb_parnl( 1 );

   pen->SetWidth( hb_parnl( 2 ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSPENSTYLE )
{
   Pen * pen = ( Pen * ) hb_parnl( 1 );

   pen->SetLineCap( ( LineCap ) hb_parnl( 2 ), ( LineCap ) hb_parnl( 2 ),
                    ( DashCap ) hb_parnl( 2 ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSALIGN )
{
   Pen * pen = ( Pen * ) hb_parnl( 1 );

   pen->SetAlignment(PenAlignmentInset);
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSNOALIGN )
{
   Pen * pen = ( Pen * ) hb_parnl( 1 );

   pen->SetAlignment(PenAlignmentCenter);
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDELETEPEN )
{
   delete ( ( Pen * ) hb_parnl( 1 ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSNEWSOLIDBRUSH )
{
     Color clr = Color( hb_parnl( 1 ), hb_parnl( 2 ), hb_parnl( 3 ), hb_parnl( 4 ) );

   hb_retnl( ( HB_LONG ) new SolidBrush( clr ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDELETEBRUSH )
{
   delete ( ( Brush * ) hb_parnl( 1 ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDRAWLINE )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );

     if HB_ISNUM( 2 )   // if pen-object
     {
        Pen * pen = ( Pen * ) hb_parnl( 2 );
                  graphics->DrawLine( pen, ( float ) hb_parnd( 3 ),
                  ( float ) hb_parnd( 4 ), ( float ) hb_parnd( 5 ),
                  ( float ) hb_parnd( 6 ) );
   }
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDRAWRECT )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
   Pen * pen = ( Pen * ) hb_parnl( 2 );
   float nLeft = hb_parnd( 4 );
   float nTop = hb_parnd( 5 );
   float nWidth =  hb_parnd( 6 );
   float nHeight = hb_parnd( 7 );

    if HB_ISNUM( 3 )    // if brush-object
    {
       Brush * brush = ( Brush * ) hb_parnl( 3 );
       graphics->FillRectangle( brush, nLeft, nTop, nWidth, nHeight );
    }

    if HB_ISNUM( 2 )    //if pen-object
    {
       Pen * pen = ( Pen * ) hb_parnl( 2 );
       graphics->DrawRectangle( pen, nLeft, nTop, nWidth, nHeight );
    }
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDRAWELLIPSE )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
   Pen * pen = ( Pen * ) hb_parnl( 2 );
   float nLeft = hb_parnd( 4 );
   float nTop = hb_parnd( 5 );
   float nWidth =  hb_parnd( 6 );
   float nHeight = hb_parnd( 7 );

     if HB_ISNUM( 3 )   //if brush-object
     {
        Brush * brush = ( Brush * ) hb_parnl( 3 );
        graphics->FillEllipse( brush, nLeft, nTop, nWidth, nHeight );
     }
   
     if HB_ISNUM( 2 )   //if pen-object
     {
       Pen * pen = ( Pen * ) hb_parnl( 2 );
       graphics->DrawEllipse( pen, nLeft, nTop, nWidth, nHeight );
     }
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSSTARTUP )
{
   hb_retl( GdiplusStartup( &gdiplusToken, &gdiplusStartupInput, NULL ) );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSSHUTDOWN )
{
   GdiplusShutdown( gdiplusToken );
}

//----------------------------------------------------------------------------//

HB_FUNC( SETPAGEUNIT2PIXEL )
{
   Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
   
   graphics->SetPageUnit( UnitPixel ); // Unit to Pixel
}

//----------------------------------------------------------------------------//
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby mastintin » Wed Nov 19, 2014 11:57 am

Antonio . Mira en esta página las cosas que hacen en vb con gdi+ :shock: .
http://leandroascierto.com/blog/category/graficos/
La cosa viene del borderlight para los gets , lo he realizado en gdi+ ,con el sistema que proponias de rectangulos cambiando de color y queda fino . Faltaria crear los rectangulos "roundrec" y guardar el fondo en un hbmp para recuperarlo cunado pierde el foco .
Para los rectangulos con bordes redondeados necesitamos pintar curvas ( no lo tenemos aún ) y pintar el paths ( tampoco ) ....
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby mastintin » Wed Nov 19, 2014 1:06 pm

con :

c:\bcc582\bin\bcc32 -P -c -O2 -Ic:\harbour\include -Ic:\bcc582\include gdipluss.cpp

me da estos errores....

Borland C++ 5.82 for Win32 Copyright (c) 1993, 2005 Borland
gdipluss.cpp:
Error E2209 c:\bcc582\include\gdiplus.h 21: Unable to open include file 'algorit
hm'
Error E2316 c:\bcc582\include\gdiplus.h 22: 'min' is not a member of 'std'
Error E2272 c:\bcc582\include\gdiplus.h 22: Identifier expected
Error E2316 c:\bcc582\include\gdiplus.h 23: 'max' is not a member of 'std'
Error E2272 c:\bcc582\include\gdiplus.h 23: Identifier expected
Error E2268 c:\bcc582\include\GdiplusTypes.h 459: Call to undefined function 'mi
n' in function RectF::Intersect(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 461: Call to undefined function 'ma
x' in function RectF::Intersect(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 483: Call to undefined function 'ma
x' in function RectF::Union(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 484: Call to undefined function 'ma
x' in function RectF::Union(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 485: Call to undefined function 'mi
n' in function RectF::Union(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 486: Call to undefined function 'mi
n' in function RectF::Union(RectF &,const RectF &,const RectF &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 647: Call to undefined function 'mi
n' in function Rect::Intersect(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 648: Call to undefined function 'mi
n' in function Rect::Intersect(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 649: Call to undefined function 'ma
x' in function Rect::Intersect(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 650: Call to undefined function 'ma
x' in function Rect::Intersect(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 671: Call to undefined function 'ma
x' in function Rect::Union(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 672: Call to undefined function 'ma
x' in function Rect::Union(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 673: Call to undefined function 'mi
n' in function Rect::Union(Rect &,const Rect &,const Rect &)
Error E2268 c:\bcc582\include\GdiplusTypes.h 674: Call to undefined function 'mi
n' in function Rect::Union(Rect &,const Rect &,const Rect &)
Warning W8004 gdipluss.cpp 150: 'pen' is assigned a value that is never used in
function HB_FUN_GDIPLUSDRAWRECT()
Warning W8004 gdipluss.cpp 174: 'pen' is assigned a value that is never used in
function HB_FUN_GDIPLUSDRAWELLIPSE()
*** 19 errors in Compile ***
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby Antonio Linares » Wed Nov 19, 2014 2:30 pm

Manuel,

Parece que no te localiza este fichero:

c:\bcc582\include\dinkumware\algorithm

Comprueba que lo tengas
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby mastintin » Wed Nov 19, 2014 2:40 pm

le he forzado el path al include que faltaba ...
Compila con dos warnings...

Borland C++ 5.82 for Win32 Copyright (c) 1993, 2005 Borland
gdipluss.cpp:
Warning W8004 gdipluss.cpp 150: 'pen' is assigned a value that is never used in
function HB_FUN_GDIPLUSDRAWRECT()
Warning W8004 gdipluss.cpp 174: 'pen' is assigned a value that is never used in
function HB_FUN_GDIPLUSDRAWELLIPSE()

Antonio , ¿ has mirado el enlace http://leandroascierto.com/blog/category/graficos/ ? .
Tiene un codigo para cargar una imagen en un formato ( “BMP, DIB, JPG, JPEG, JPE, JFIF, GIF, PNG, TIF, TIFF, EMF, WMF, ICO, CUR”. ) y pasarla a otro usando gdi+ que es buenisima .. http://leandroascierto.com/blog/modulo- ... -otro-gdi/
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby mastintin » Wed Nov 19, 2014 9:10 pm

He añadido algo de código al archivo gdiplus.cpp ....

Code: Select all  Expand view


HB_FUNC( GDIPLUSDRAWARC )
{
    Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
    Pen * pen = ( Pen * ) hb_parnl( 2 );
   
   float nLeft = hb_parnd( 3 );
   float nTop = hb_parnd( 4 );
   float nWidth =  hb_parnd( 5 );
   float nHeight = hb_parnd( 6 );
   float startAngle =  hb_parnd( 7 );
   float sweepAngle = hb_parnd( 8 );
 
    graphics->DrawArc( pen, nLeft, nTop, nWidth, nHeight, startAngle, sweepAngle);
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSCREATEPATH )
{
      hb_retnl( ( HB_LONG ) new GraphicsPath() );
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDELETEPATH )
{
   delete ( ( GraphicsPath * ) hb_parnl( 1 ) );
}


//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSPATHADDLINE )
{
     GraphicsPath * graphicPath = ( GraphicsPath * ) hb_parnl( 1 );
     float nLeft = hb_parnd( 2 );
   float nTop = hb_parnd( 3 );
   float nRight =  hb_parnd( 4 );
   float nBottom = hb_parnd( 5 );
     
     graphicPath->AddLine(  nLeft, nTop, nRight, nBottom ) ;

}


//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDRAWPATH )
{
 Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
 Pen * pen = ( Pen * ) hb_parnl( 2 );
 GraphicsPath * graphicPath = ( GraphicsPath * ) hb_parnl( 3 );
 
 graphics->DrawPath( pen, graphicPath );
 
}

HB_FUNC( GDIPLUSPENSETCLR )
{
     Pen * pen = ( Pen * ) hb_parnl( 1 );
   
    Color clr = Color( hb_parnl( 2 ), hb_parnl( 3 ), hb_parnl( 4 ), hb_parnl( 5 ) );
     hb_retni( pen->SetColor( clr ) );

}


 


Para el archivo tgdiplus.prg ....
Code: Select all  Expand view


CLASS Graphics
....

  METHOD DrawArc( oPen, nLeft, nTop, nWidth, nHight,startAngle, sweepAngle ) INLINE ;
          GdiPlusDrawArc( oPen:hPen, nLeft, nTop, nWidth, nHeight, startAngle, sweepAngle )
   
   METHOD DrawPath( oPen, oPath ) INLINE GdiPlusDrawPath( oPen:hPen, oPath:hPath )

.....

CLASS Pen
...
 METHOD SetColor( nTrans, nRed, nGreen, nBlue ) INLINE ;
                GdiPlusPenSetClr( ::hPen, nTrans, nRed, nGreen, nBlue )  // nuevo methodo clase pen

.....

CLASS Path   / nueva clase Path

   DATA   hPath

   METHOD New()

   METHOD Destroy()
   METHOD AddLINE ( nLeft, nTop, nRight, nBottom ) INLINE GdiPlusPathAddLine( ::hPath, nLeft, nTop, nRight, nBottom )

   DESTRUCTOR Destroy()

ENDCLASS

//----------------------------------------------------------------------------//

METHOD New() CLASS Path

   ::hPath = GdiPlusCreatePath()

return Self

//----------------------------------------------------------------------------//

METHOD Destroy() CLASS Path

   GdiPlusDeletePath( ::hPath )

   ::hBrush = nil

return nil


 
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby Antonio Linares » Wed Nov 19, 2014 11:57 pm

Manuel,

gracias por tu código :-)

Acabo de ver esa página. Mas que nada lo que nos interesaria seria poder prescindir de la DLL FreeLibrary.dll

Eso sería fantástico para las aplicaciones FWH :-)

Por eso me interesa GDI+ en primer lugar. Lo intentamos ? :-)
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby Antonio Linares » Wed Nov 19, 2014 11:59 pm

Está en tu enlace (ese no lo habia visto aún).

Solo tenemos que pasar ese código de Visual Basic a FWH !!! :-D
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby mastintin » Thu Nov 20, 2014 6:12 pm

Tengo mas código gdi+ ... con esto ya coloco las imagenes en la ventana , incluyendo png transparentes . :D
También tiene código para grabar la imagen leída en cualquiera de los formatos soportados , por ahora tenemos TIF,GIF ,JPG,PNG ,BMP

...................... editado ....................................

He cambiado la clase Image a gdiImage y cambiado el codigo para facilitar el añadir mas formatos de imagen facilmente .
Tambien he añadido una función para convertir imagenes entre formatos ( entre los soportados).


para gdiplus.cpp
Code: Select all  Expand view



HB_FUNC( GDIPLUSCREATEIMAGEFROMFILE )
{
    Image * newImage =  new Image(  (LPCWSTR) hb_parc(1)  );  
  hb_retnl( ( HB_LONG ) newImage );
 
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSDRAWIMAGE )
{
    int iParams = hb_pcount();
   
    Graphics * graphics = ( Graphics * ) hb_parnl( 1 );
    Image * newImage = ( Image * ) hb_parnl( 2 );
  int nLeft ;
  int nTop ;
  int nWidth ;
  int nHeight;
     
   switch (iParams){
    
    case 4:
      nLeft = hb_parni( 3 );
      nTop = hb_parni( 4 );
   
    graphics->DrawImage( newImage, nLeft, nTop );
   
   case 6:
     nLeft = hb_parni( 3 );
     nTop = hb_parni( 4 );
     nWidth =  hb_parni( 5 );
     nHeight = hb_parni( 6 );
     
    graphics->DrawImage( newImage, nLeft, nTop,nWidth,nHeight);
   
  }
    
   
}

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSIMAGESAVE )
{
  Image * newImage = ( Image * ) hb_parnl( 1 );
  CLSID cClsid ;
  LPWSTR file = (LPWSTR) hb_parc(2);
  LPWSTR identificador =  (LPWSTR) hb_parc(3);
  CLSIDFromString( identificador, &cClsid ) ;
   newImage->Save( file , &cClsid, NULL);
}


 


para tgdiplus (este codigo aún sin revisar ) :
Code: Select all  Expand view


//----------------------------------------------------------------------------//

METHOD DrawImage( oImage,nTop,nleft, nWidth, nHeight ) CLASS Graphics

 if Empty(nWidth ) .or. Empty( nHeight )
    GdiPlusDrawImage( ::hGraphics, oImage:hImage, nTop, nLeft )
 else
    GdiPlusDrawImage(  ::hGraphics, oImage:hImage,nTop,nLeft, nWidth, nHeight )
endif

Return nil

//----------------------------------------------------------------------------//

HB_FUNC( GDIPLUSIMAGEFINALIZE )
{  
 Image * newImage = ( Image * ) hb_parnl( 1 );
 newImage.Finalize();
}
...........


//----------------------------------------------------------------------------//

CLASS GDIImage

   DATA hImage
   DATA aCLSID
   DATa aExtensions
   
   METHOD New(cFile)
   METHOD Destroy()
   METHOD Save( cFile )
   DESTRUCTOR Destroy()

ENDCLASS

//----------------------------------------------------------------------------//

METHOD New( cFile ) CLASS GDImage

   ::hImage = GdiPlusCreateImageFromFile( AnsiToWide( cFile ) )
   ::aExtIni := { "BMP", "JPG", "GIF", "TIF", "PNG" }
   ::aExtEnd := { "BMP", "JPG", "GIF", "TIF", "PNG" }
   ::aCLSID := { "{557CF400-1A04-11D3-9A73-0000F81EF32E}" ,;
                               "{557CF401-1A04-11D3-9A73-0000F81EF32E}" ,;
                               "{557CF402-1A04-11D3-9A73-0000F81EF32E}" ,;
                               "{557CF405-1A04-11D3-9A73-0000F81EF32E}" ,;
                               "{557CF406-1A04-11D3-9A73-0000F81EF32E}"  ;
               }
return Self

//----------------------------------------------------------------------------//

METHOD Save( cFile ) CLASS GDIImage
local cExtension := Upper(cFileExt(cFile))
local cCLSID

local nScan:= aScan( ::aExtEnd, cFile )

if nScan == 0
    msginfo( "Formato no soportado" )
    Return .f.
endif

 cCLSID := aCLSID[ nScan ]
 
 cCLSID = AnsiToWide( cCLSID )
 cFile  = AnsiToWide( cFile )

 GdiPlusImageSave( ::hImage, cFile, cCLSID )

Return nil


//----------------------------------------------------------------------------//

METHOD Destroy() CLASS GDIImage

    GdiPlusImageFinalize( ::hImage )
     ::hImage = nil

return nil

//----------------------------------------------------------------------------//

Function GDIPlusConvertImage( cImageIni, cImageEnd )

local cExtIni := Upper(cFileExt( cImageIni ))
local cExtEnd := Upper(cFileExt( cImageEnd ))
local oImage
local nScan

if cImageIni == cImageEnd
   msginfo( "Error. La imagen inicial y final son la misma" )
   Return .f.
endif

 if( nScan:= aScan( oImage:aExtIni, cExtIni )) == 0
    Msginfo( " el archivo "+ cImageIni + " tiene un formato no soportado")
    return .f.
 endif
 
 if( nScan:= aScan( oImage:aExtEnd, cExtEnd )) == 0
    Msginfo( " el archivo "+ cImageEnd + " tiene un formato no soportado")
    return .f.
 endif
 
oImage:= GDIImage():New( cImageIni )
oImage:Save( cImageEnd )
oImage:Destroy()

Return nil


 
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Re: documentacion de funciones gdi+

Postby Antonio Linares » Fri Nov 21, 2014 11:47 am

Manuel,

He empezado a revisar el código de conversión de ficheros, y este es el primer ejemplo que he construido:

Code: Select all  Expand view
#include "FiveWin.ch"

function Main()

   local hBmp

   MsgInfo( GdiPLoadImageFromFile( "..\bitmaps\five.bmp", @hBmp ) )
   MsgInfo( hBmp )

return nil

DLL FUNCTION GdipLoadImageFromFile( cFileName AS LPSTR, hImage AS LONG ) AS LONG PASCAL ;
   LIB "GdiPlus.dll"


Me aparece un 18. Ni idea aún de que es... :-)
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby Antonio Linares » Fri Nov 21, 2014 11:52 am

el nombre del fichero tiene que estar en "wide" luego seguiriamos con:

Code: Select all  Expand view
#include "FiveWin.ch"

function Main()

   local hBmp := 0

   MsgInfo( GdiPLoadImageFromFile( AnsiToWide( "..\bitmaps\five.bmp" ), @hBmp ) )
   MsgInfo( hBmp )

return nil

DLL FUNCTION GdipLoadImageFromFile( cFileName AS LPSTR, hImage AS LONG ) AS LONG PASCAL ;
   LIB "GdiPlus.dll"


sigue apareciendo el 18...
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby Antonio Linares » Fri Nov 21, 2014 12:09 pm

Asi paso a obtener un 2:

Code: Select all  Expand view
#include "FiveWin.ch"

function Main()

   local oGraphics := Graphics():New( 0 )
   local hBmp := 0

   MsgInfo( GdiPLoadImageFromFile( AnsiToWide( "..\bitmaps\five.bmp" ), @hBmp ) )
   MsgInfo( hBmp )

return nil

DLL FUNCTION GdipLoadImageFromFile( cFileName AS LPSTR, hImage AS LONG ) AS LONG PASCAL ;
   LIB "GdiPlus.dll"
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby Antonio Linares » Fri Nov 21, 2014 12:10 pm

Parece que estos son los códigos de error de GdiPlus:

"Ok",
"GenericError",
"InvalidParameter",
"OutOfMemory",
"ObjectBusy",
"InsufficientBuffer",
"NotImplemented",
"Win32Error",
"WrongState",
"Aborted",
"FileNotFound",
"ValueOverflow",
"AccessDenied",
"UnknownImageFormat",
"FontFamilyNotFound",
"FontStyleNotFound",
"NotTrueTypeFont",
"UnsupportedGdiplusVersion",
"GdiplusNotInitialized",
"PropertyNotFound",
"PropertyNotSupported"

Por lo que el 18 era: "GdiplusNotInitialized"

y el 2 es: "InvalidParameter"
regards, saludos

Antonio Linares
www.fivetechsoft.com
User avatar
Antonio Linares
Site Admin
 
Posts: 42052
Joined: Thu Oct 06, 2005 5:47 pm
Location: Spain

Re: documentacion de funciones gdi+

Postby mastintin » Fri Nov 21, 2014 1:56 pm

Antonio , Tienes ya una Funcion completa para convertir archivos ....
Code: Select all  Expand view

Function GDIPlusConvertImage( cImageIni, cImageEnd )

local cExtIni := Upper(cFileExt( cImageIni ))
local cExtEnd := Upper(cFileExt( cImageEnd ))
local oImage
local nScan

if cImageIni == cImageEnd
   msginfo( "Error. La imagen inicial y final son la misma" )
   Return .f.
endif
oImage = GDIImage()-New( cImageIni )
 if( nScan:= aScan( oImage:aExtIni, cExtIni )) == 0
    Msginfo( " el archivo "+ cImageIni + " tiene un formato no soportado")
    return .f.
 endif
 
 if( nScan:= aScan( oImage:aExtEnd, cExtEnd )) == 0
    Msginfo( " el archivo "+ cImageEnd + " tiene un formato no soportado")
    return .f.
 endif
 
oImage:Save( cImageEnd )
oImage:Destroy()

Return nil

 
Last edited by mastintin on Fri Nov 21, 2014 4:13 pm, edited 1 time in total.
User avatar
mastintin
 
Posts: 1516
Joined: Thu May 27, 2010 2:06 pm

Next

Return to FiveWin para Harbour/xHarbour

Who is online

Users browsing this forum: Google [Bot] and 74 guests