Location:
APMSTD.H
const TInt32 KDataTypePriorityTrustedHigh;
Trusted applications may use this priority value to ensure their MIME type associations cannot be overridden by self signed (untrusted) applications.
const TInt32 KDataTypeUnTrustedPriorityThreshold;
This is Threshold priority for Un-Trusted apps i.e., for the applications which reside in \private\10003a3f\import\apps and have a SID which is in the unprotected range. This is to avoid Un-Trusted app's claiming for priority higher than the threshold, if they claim for priority higher than the Threshold then it would be reduced to KDataTypeUnTrustedPriorityThreshold.
const TInt32 KDataTypePriorityHigh;
A priority value associated with a data (MIME) type. Associating an application with a data type at this priority means that this application, and no other, should ever handle the data type. Use sparingly.
const TInt32 KDataTypePriorityNormal;
A priority value associated with a data (MIME) type. Associating an application with a data type at this priority means that the data type is the primary type for that application. For example, "text/plain" files for a text editor.
const TInt32 KDataTypePriorityLow;
A priority value associated with a data (MIME) type. Associating an application with a data type at this priority means that the data type is a secondary type for that application. For example, "text/plain" files for a web browser.
const TInt32 KDataTypePriorityLastResort;
A priority value associated with a data (MIME) type. Associating an application with a data type at this priority means that the data type is a last resort for that application. Use sparingly.
const TInt32 KDataTypePriorityNotSupported;
Reserved for future use.