dmParamsGetInt(3dm) dmParamsGetInt(3dm)
dmParamsGetInt, dmParamsGetEnum, dmParamsGetString, dmParamsGetBinary,
dmParamsGetFloat, dmParamsGetFract, dmParamsGetParams - get values from
digital media parameter/value lists
#include <dmedia/dm_params.h>
int dmParamsGetInt
( const DMparams* params,
const char* paramName )
int dmParamsGetEnum
( const DMparams* params,
const char* paramName )
const char* dmParamsGetString
( const DMparams* params,
const char* paramName )
const void* dmParamsGetBinary
( const DMparams* params,
const char* paramName,
size_t* dataSize )
double dmParamsGetFloat
( const DMparams* params,
const char* paramName )
DMfraction dmParamsGetFract
( const DMparams* params,
const char* paramName )
const DMparams* dmParamsGetParams
( const DMparams* params,
const char* paramName )
These functions all retrieve values stored in a parameter/value list.
They assume that the named parameter is present and is of the specified
type; the debugging version of the library asserts that this is the case.
The value, or a pointer to it is returned. For strings, binary data,
parameter lists, and table-of-contents entries, the pointer returned
points into the internal data structure of the parameter list. It should
never be freed, and is only guaranteed to remain valid until the next
time the list is changed. In general, if you need to keep a string or
binary-stream value around after getting it from a parameter/value list,
it should be copied.
Page 1
dmParamsGetInt(3dm) dmParamsGetInt(3dm)
dmParams(3dm), dmParamsSetInt(3dm), dmParamsGetNumElems(3dm),
dmSetImageDefaults(3dm), dmSetAudioDefaults(3dm).
PPPPaaaaggggeeee 2222 [ Back ]
|