Re: GraphicsImport into k24RGB gWorld?

• Subject: Re: GraphicsImport into k24RGB gWorld?
• From: Yaron Tadmor <email@hidden>
• Date: Sun, 15 Sep 2002 10:50:47 +0200

Date: Fri, 13 Sep 2002 16:13:12 -0400
To: email@hidden
From: Robert Winchester <email@hidden>
Subject: GraphicsImport into k24RGB gWorld?

Help! I've been trying the following code to import an image into a
k24RGBPixelFormat gWorld with no success. Is it NOT possible to do a
GraphicsImportDraw into a gWorld that is NOT a traditional
(k32ARGBPixelFormat) world?

(A lot of obvious stuff deleted for brevity):

err = GetGraphicsImporterForFile(&fsSpec, &graphicsImporter);

UInt32 bufferSize = imageSize.width * imageSize.height * 3;
Ptr rgbBuffer = NewPtr(bufferSize);

// Create a gWorld from the RGB buffer Ptr.

OSType pixelFormat = k24RGBPixelFormat; // No alpha channel!
CTabHandle cTable = nil;
GDHandle aGDevice = nil;
GWorldFlags flags = nil;
long rowBytes = imageSize.width * 3;

err = QTNewGWorldFromPtr(&gWorld, pixelFormat, &imageRect, cTable,
aGDevice, flags, rgbBuffer, rowBytes);

err = GraphicsImportSetGWorld(graphicsImporter, gWorld, nil);

err = GraphicsImportDraw(graphicsImporter);

err = CloseComponent(graphicsImporter);


Thanks,
Rob

• Prev by Date: Re: QT Components under Windows
• Next by Date: Re: QT Components under Windows
• Previous by thread: GraphicsImport into k24RGB gWorld?
• Next by thread: -50 err with AddMediaSample() and data size of 0
• Index(es):
  • Date
  • Thread