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Re: quick-draw PicHandle question

On 9/19/02 9:05 PM, email@hidden didst favor us with:

> But , have any method can convert "GWorld" to "PicHandle"

PicHandle GWorld2PICT( const GWorldPtr inGWorldPtr )
{
PicHandle tPicHandle = nil;

if (inGWorldPtr != nil)
{
PixMapHandle tPixMapHdl;

CGrafPtr origPort;
GDHandle origDev;

GetGWorld( &origPort, &origDev ); // save current graphics port
SetGWorld( inGWorldPtr, nil ); // make this the current port

ForeColor( blackColor ); // this is so copybits
BackColor( whiteColor ); // won't remap the colors

// get handle to offscreen pixel image

tPixMapHdl = GetGWorldPixMap(inGWorldPtr );

if ( LockPixels( tPixMapHdl ) ) //
and lock it
{
ClipRect( &(*tPixMapHdl)->bounds ); // Set the clip rect

tPicHandle = OpenPicture( &(*tPixMapHdl)->bounds );

if ( tPicHandle != nil )
{
// next, use CopyBits to copy the pixmap to itself
CopyBits( (BitMap*) *tPixMapHdl, // coerce to a BitMap
(BitMap*) *tPixMapHdl, // same as source
&(*tPixMapHdl)->bounds, // use PixMap bounds
&(*tPixMapHdl)->bounds, // same as source
srcCopy,nil);
ClosePicture();
}

UnlockPixels( tPixMapHdl ); // unlock the pixel image
}

SetGWorld( origPort, origDev ); // restore previous graphics port
}

return tPicHandle;
}
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References: 
 >Re: quick-draw PicHandle question (From: email@hidden)



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