On Tue, 29 Apr 2008 09:16:05 +0100 (BST), Andrew Davis
<email@hidden> wrote:
> Hi,
> I am taking an image from the system, displaying it in a window and
modifying it. Now, i need to save that modified image(jpeg, bmp, png) in some
other location within the system. All i have is the CGContextRef and the
CGImageRef( the image drawn on that context ). How to save this in a FILE?
/*****************************************************
*
* QTIE_ExportCGImageToFile( imageRef, path )
*
* Purpose: export the image to a file at the path
*
* Inputs: CGImageRef - the imported image
* inExportComponentSubType - the type of file to export to
* inPath - the path to the file to export to
*
* Returns: OSStatus - error code ( 0 == no error )*/
OSStatus QTIE_ExportCGImageToFile( CGImageRef imageRef, const OSType
inExportComponentSubType, CFStringRef inPathCFStringRef )
{
OSStatus status;
Handle dataRef = NULL;
OSType dataRefType;
status = QTNewDataReferenceFromFullPathCFString( inPathCFStringRef,
kQTNativeDefaultPathStyle, 0, &dataRef, &dataRefType );
require_noerr( status, bail );
GraphicsExportComponent graphicsExporter = 0L;
status = OpenADefaultComponent( GraphicsExporterComponentType,
inExportComponentSubType, &graphicsExporter );
require_noerr( status, bail );
status = GraphicsExportSetInputCGImage( graphicsExporter, imageRef );
require_noerr( status, bail );
status = GraphicsExportSetOutputDataReference( graphicsExporter,
dataRef, dataRefType );
require_noerr( status, bail );
unsigned long sizeWritten;
status = GraphicsExportDoExport( graphicsExporter, &sizeWritten );
// require_noerr( status, bail );
bail:
if ( 0L != graphicsExporter ) {
CloseComponent( graphicsExporter );
}
if ( 0 != dataRef )
DisposeHandle( dataRef );
return status;
}
--
Enjoy,
George Warner,
Schizophrenic Optimization Scientist
Apple Developer Technical Support (DTS)
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Carbon-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/carbon-dev/email@hidden
This email sent to email@hidden
