GFilter.cpp File Reference

Graphics file filters. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "Gdc2.h"
#include "GString.h"
#include "GVariant.h"

Classes
class	GdcBmp
	Windows and OS/2 BMP file filter. More...
Functions
GSurface *	LoadDC (char *Name, bool UseOSLoader)
	Loads a image from a file.
bool	WriteDC (char *Name, GSurface *pDC)
	Writes an image to a file.

---

Detailed Description

Graphics file filters.

Author:

Matthew Allen

Date:

25/3/97

---

Function Documentation

GSurface* LoadDC	(	char *	Name,
		bool	UseOSLoader = true
	)

Loads a image from a file.

This function uses the compiled in codecs, some of which require external shared libraries / DLL's to function. Other just need the right source to be compiled in.

Lgi comes with the following image codecs:

• Windows or OS/2 Bitmap: GdcBmp (GFilter.cpp)
• PCX: GdcPcx (Pcx.cpp)
• GIF: GdcGif (Gif.cpp and Lzw.cpp)
• JPEG: GdcJpeg (Jpeg.cpp + libjpeg library)
• PNG: GdcPng (Png.cpp + libpng library)

Parameters:

Name	The full path of the file
UseOSLoader	[Optional] Enable OS based loaders

References GdcRGB::B, FILTER_CAP_READ, GdcRGB::G, GDC_OR, GDC_PROMOTE_ON_LOAD, GDC_SET, LgiSleep, GFile::Open(), GdcRGB::R, GFile::Read(), Rgb15, GFile::SetPos(), and GVariant::WStr().

Referenced by GBitmap::GBitmap(), GDefaultDocumentEnv::GetContent(), LgiLoadImageList(), GTrayIcon::Load(), and GToolBar::SetBitmap().