hpi_usermanual_html/beta_html/group__universal__blulink__txmap.html

static void print_block_control(
        hpi_hsubsys_t *hSubSys,
        hpi_handle_t hMixer,
        hpi_handle_t hControl
)
{
        enum e_entity_role r;
        hpi_err_t err;
        char name[256];
        size_t size, items;
        int count;
        err = HPI_Object_GetRole(hControl, &r);
        if (err)
                HandleError(err);
        // name
        size = sizeof(name);
        err = HPI_Object_GetInfo( hControl,
                        entity_type_cstring, entity_role_classname,
                        name, &size, &items);
        if (err)
                HandleError(err);
        printf(" %s", name);
        // count
        size = sizeof(count);
        err = HPI_Object_GetInfo( hControl,
                        entity_type_int, entity_role_value,
                        &count, &size, &items);
        if (err)
                HandleError(err);
        printf(", count %d", count);
        // fetch parameter handles
        if ( r == entity_role_block ) {
                hpi_handle_t params[16]; /* should really use count */
                int i;
                size_t number;
                printf(" [");
                number = sizeof(params)/sizeof(hpi_handle_t);
                err = HPI_Object_BlockParameters(
                        hMixer,
                        hControl,
                        params,
                        &number);
                if (err)
                        HandleError(err);
                for ( i=0 ; i<number ; i++ ) {
                        if (i > 0)
                                printf(", ");
                        printf("%d",params[i]);
                }
                printf("]");
        }
}
Name	BLU link OnRamp Channel
Description	Control BLU link OnRamp settings
Optional	No
Type	sequence / entity_type_sequence / a sequence of parameters follow
Count	1
Attributes	read
Added in version	4.14.00
Example	static void print_block_control( hpi_hsubsys_t hSubSys, hpi_handle_t hMixer, hpi_handle_t hControl ) { enum e_entity_role r; hpi_err_t err; char name[256]; size_t size, items; int count; err = HPI_Object_GetRole(hControl, &r); if (err) HandleError(err); // name size = sizeof(name); err = HPI_Object_GetInfo( hControl, entity_type_cstring, entity_role_classname, name, &size, &items); if (err) HandleError(err); printf(" %s", name); // count size = sizeof(count); err = HPI_Object_GetInfo( hControl, entity_type_int, entity_role_value, &count, &size, &items); if (err) HandleError(err); printf(", count %d", count); // fetch parameter handles if ( r == entity_role_block ) { hpi_handle_t params[16]; / should really use count */ int i; size_t number; printf(" ["); number = sizeof(params)/sizeof(hpi_handle_t); err = HPI_Object_BlockParameters( hMixer, hControl, params, &number); if (err) HandleError(err); for ( i=0 ; i<number ; i++ ) { if (i > 0) printf(", "); printf("%d",params[i]); } printf("]"); } }
Name	OnRampChannel
Description	The BLU link on ramp channel. The input range of values has a range of 0-256 and internally this is mapped to an "enable" bit and a range of 0 - 255. Value of 0 therefore implies disable. Values 1 - 256 are internally mapped to 0 - 255.
Optional	No
Type	integer / entity_type_int / C99 type int32_t
Count	1
Attributes	read/write
Added in version	4.14.00
Example	struct hpi_control_t asihpi_control; hpi_handle_t block; hpi_handle_t param; size_t value_size; size_t value_items; int OnRampChannel; /* set source and destination node */ asihpi_control.wSrcNodeType = 0; asihpi_control.wSrcNodeIndex = 0; asihpi_control.wDstNodeType = HPI_DESTNODE_BLULINK; asihpi_control.wDstNodeIndex = 0; err = HPI_Object_BlockHandle(hMixer, asihpi_control.wSrcNodeType, asihpi_control.wSrcNodeIndex, asihpi_control.wDstNodeType, asihpi_control.wDstNodeIndex, "BLU link OnRamp Channel", &block ); err = HPI_Object_ParameterHandle( hMixer, block, "OnRampChannel", &param); if (!err) { err = HPI_Object_GetInfo( param, entity_type_int, entity_role_value, NULL, &value_size, &value_items); } err = HPI_Object_GetValue(param, entity_type_int, 1, &OnRampChannel, sizeof(OnRampChannel) ); OnRampChannel = 1; err = HPI_Object_SetValue(param, entity_type_int, 1, &OnRampChannel, sizeof(OnRampChannel));