Get device attribute value

Functions
int32_t	VkDaqGetDeviceAttribute (const char *dev, const char *attrName, char attrValue[], int32_t size)
	Get device attribute value.

Detailed Description

Function Documentation

VkDaqGetDeviceAttribute()

int32_t VkDaqGetDeviceAttribute	(	const char *	dev,
		const char *	attrName,
		char	attrValue[],
		int32_t	size
	)

Get device attribute value.

data type	parameter	describe
const char*	dev	Device name or Channel name, such as "dev1", "dev2",etc.
const char*	attrName	Attribute name, such as "Model", "SamplingFrequency", etc
char[]	attrValue[]	Character array, used to store attribute values.
const char*	size	The size of the attrValue arrays.

Returns

On success, return value >= 0.

On failure, returns a negative error number.For detail, please Call VkDaqGetLastErrorInfo

Note

For detailed information about device properties, please refer to the property reference of the corresponding acquisition card below:

1. VP8388_VP8384_Device_Attributes

2. VK7016_VK7018_Device_Attributes

3. VP6068_Device_Attributes

C language reference

#include <stdio.h>
#include "libvkdaq.h"
 
int main(int argc, char* argv[])
{
    const char* dev = "dev1"; 
    const char* attrName = "Model";
    char attrValue[4096] = { 0 };
    int32_t size = sizeof(attrValue);
 
    int32_t result = VkDaqGetDeviceAttribute(dev, attrName, attrValue,size); 
 
    printf("Model = %s \n", attrValue); 
 
    if (result >= 0) {
        printf("Successful\n");
    }
    else {
        printf("Failed\n");
    }
 
    return 0;
}