diff -r ebc84c812384 -r 46218c8b8afa Symbian3/PDK/Source/GUID-936A024F-FFBA-530E-A2C6-C835B71633F7.dita --- a/Symbian3/PDK/Source/GUID-936A024F-FFBA-530E-A2C6-C835B71633F7.dita Thu Mar 11 15:24:26 2010 +0000 +++ b/Symbian3/PDK/Source/GUID-936A024F-FFBA-530E-A2C6-C835B71633F7.dita Thu Mar 11 18:02:22 2010 +0000 @@ -1,86 +1,86 @@ - - - - - -DirectGDI -Library Overview The DirectGDI library provides the key elements of the DirectGDI -component—driver, resources and drawing context. -

Target audience: Device creators.

-DirectGDI is deprecated in Symbian^3. -

The following table identifies the Dynamic Link Library (DLL) that provides -the core DirectGDI functionality.

- - - - -DLL -LIB -Short Description - - - - -

directgdi.dll

-

directgdi.lib

-

This DLL provides the key elements of DirectGDI—driver, resources -and drawing context.

- - - -
-
Key classes

The following table provides a summary -of the key classes that make up the DirectGDI API library.

- - - -Class -Description - - - - -

CDirectGdiDriver

-

This class defines the API which is used by DirectGDI client applications. -It is implemented using the handle/body idiom. The handle part forms the public -and private API that is used by DirectGDI client applications and other DirectGDI -generic parts. The body part defines the HAI that needs to be implemented -by an adaptation. The implementation of the handle part is generic for all -adaptations. The implementation of the body part is adaptation specific and -provides interfaces for initialization, termination, construction of the concrete -drawing engine and the creation of source or target rendering. This class -is a singleton within a thread. It delegates to an adaptation-specific implementation -that provides a platform-specific mechanism. See DirectGDI -Interface Component Overview for more information.

- - -

CDirectGdiContext

-

This class is the new drawing context intended for hardware accelerated -rendering. It defines an API that is very similar to that provided by CFbsBitGc but -which enables hardware accelerated rendering when it is available. A software -implementation can be used on devices where hardware acceleration is not available. -In addition it provides new APIs for drawing using DirectGDI drawable sources. -This class is part of the generic layer and forwards drawing requests to the -adaptation-specific drawing engine to execute.

- - -

CDirectGdiFont

-

This class is very similar to the CFbsBitGcFont class. -The major portion of text rendering (for example, font rasterization, layout -and glyph shaping) is done at the generic layer.

- - - -
- -DirectGDI -Component Overview -Off-Screen -Rendering with DirectGDI Tutorial + + + + + +DirectGDI +Library Overview The DirectGDI library provides the key elements of the DirectGDI +component—driver, resources and drawing context. +

Target audience: Device creators.

+DirectGDI is deprecated in Symbian^3. +

The following table identifies the Dynamic Link Library (DLL) that provides +the core DirectGDI functionality.

+ + + + +DLL +LIB +Short Description + + + + +

directgdi.dll

+

directgdi.lib

+

This DLL provides the key elements of DirectGDI—driver, resources +and drawing context.

+ + + +
+
Key classes

The following table provides a summary +of the key classes that make up the DirectGDI API library.

+ + + +Class +Description + + + + +

CDirectGdiDriver

+

This class defines the API which is used by DirectGDI client applications. +It is implemented using the handle/body idiom. The handle part forms the public +and private API that is used by DirectGDI client applications and other DirectGDI +generic parts. The body part defines the HAI that needs to be implemented +by an adaptation. The implementation of the handle part is generic for all +adaptations. The implementation of the body part is adaptation specific and +provides interfaces for initialization, termination, construction of the concrete +drawing engine and the creation of source or target rendering. This class +is a singleton within a thread. It delegates to an adaptation-specific implementation +that provides a platform-specific mechanism. See DirectGDI +Interface Component Overview for more information.

+ + +

CDirectGdiContext

+

This class is the new drawing context intended for hardware accelerated +rendering. It defines an API that is very similar to that provided by CFbsBitGc but +which enables hardware accelerated rendering when it is available. A software +implementation can be used on devices where hardware acceleration is not available. +In addition it provides new APIs for drawing using DirectGDI drawable sources. +This class is part of the generic layer and forwards drawing requests to the +adaptation-specific drawing engine to execute.

+ + +

CDirectGdiFont

+

This class is very similar to the CFbsBitGcFont class. +The major portion of text rendering (for example, font rasterization, layout +and glyph shaping) is done at the generic layer.

+ + + +
+ +DirectGDI +Component Overview +Off-Screen +Rendering with DirectGDI Tutorial \ No newline at end of file