BaseObjectTypesAndPresets.markdown

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+[Contents](Contents)
 
 ```objective-c
 //  MIConstants.h
 //
-//  Copyright (c) 2015 Zukini Ltd. All rights reserved.
+//  Copyright (c) 2015 Zukini Ltd.
 
 @import Foundation;
 
+#pragma clang assume_nonnull begin
+
 /// The image importer base object type. "imageimporter"
 extern NSString *const MIImageImporterKey;
 
@@ -22,14 +24,17 @@ extern NSString *const MICGBitmapContextKey;
 /// The pdf context base object type. "pdfcontext".
 extern NSString *const MICGPDFContextKey;
 
-/// The movie importer base object type. "movieimporter" (unimplemented).
+/// The movie importer base object type. "movieimporter".
 extern NSString *const MIMovieImporterKey;
 
-/// The movie editor base object type. "movieeditor" (unimplemented).
+/// The movie frame iterator base object type. "movieframeiterator"
+// extern NSString *const MIMovieFrameIteratorKey;
+
+/// The movie editor base object type. "movieeditor".
 extern NSString *const MIMovieEditorKey;
 
-/// UIGraphicsContext wrapper base object. "uigraphicscontext" (unimplemented)
-extern NSString *const MIUIGraphicContext;
+/// The movie video frames writer base object type. "videoframeswriter"
+extern NSString *const MIMovieVideoFramesWriterKey;
 
 /// NSGraphicContext wrapper base object. "nsgraphicscontext"
 extern NSString *const MINSGraphicContextKey;
@@ -80,10 +85,22 @@ extern NSString *const MIAlphaPreMulLastRGB32bpc128bppFloat;
 extern NSString *const MICMYK8bpc32bppInteger;
 
 /// CMYK. 16 bpc. 64 bpp. Integer. "CMYK16bpcInt" CMYK
-extern NSString *const MICMYK16bpc64bppInteger; // CMYK
+extern NSString *const MICMYK16bpc64bppInteger;
 
 /// CMYK. 32 bpc. 128 bpp. Integer. "CMYK32bpcFloat" CMYK
-extern NSString *const MICMYK32bpc128bppFloat; // CMYK.
+extern NSString *const MICMYK32bpc128bppFloat;
+
+/// BGRA. Alpha. 8bpc, 32bpp. Integer. "AlphaPreMulBGRA8bpcInt" BGRA
+extern NSString *const MIAlphaPreMulBGRA8bpc32bppInteger; //BGRA
+
+/**
+ @brief The platform default bitmap context.
+ @discussion On iOS the preferred bitmap context is BGRA 8bpc whilst on OSX
+ the preferred bitmap context ARGB 8bpc. On OSX This maps to 
+ MIAlphaPreMulFirstRGB8bpc32bppInteger whilst on iOS this maps to
+ MIAlphaPreMulBGRA8bpc32bppInteger.
+*/
+extern NSString *const MIPlatformDefaultBitmapContext;
 
 /**
  @brief An error message key.
@@ -94,6 +111,8 @@ extern NSString *const MIErrorMessageKey;
 
 NSArray *MICGBitmapGetPresetList();
 
+#pragma clang assume_nonnull end
+
 ```
 
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