getSupportedCapabilities() Method
In This Topic
Returns information about all capabilities supported by TWAIN device. Function gets information using Get usage mode.
Syntax
var instance = new Vintasoft.Twain.WebTwainDeviceJS(deviceName, productFamily, manufacturer, driverVersion, twainVersion, deviceManager, is64Bit);
var value; // Type: Vintasoft.Twain.WebTwainCapabilityInfoJS[]
value = instance.getSupportedCapabilities();
Return Value
An array of instances of
WebTwainCapabilityInfoJS class.
Exceptions
| Exception | Description |
|---|
| Thrown if argument has wrong type OR device is not opened OR error occurs during getting information about supported device capabilities. |
Remarks
This function sends a synchronous request to get information about all capabilities supported by TWAIN device. If you want to use asynchronous request instead of synchronous request, please use WebTwainDeviceJS.getSupportedCapabilitiesAsync function.
Example
// Gets information about supported capabilities of opened TWAIN device.
function getSupportedTwainDeviceCapabilities() {
try {
// specify that "Get" usage mode must be used for getting information about capabilities
var usageMode = new Vintasoft.Twain.WebTwainDeviceCapabilityUsageModeEnumJS("Get");
// get information about capabilities of opened TWAIN device
var twainCapInfos = twainDevice.getSupportedCapabilities(usageMode);
// for each capability
for (var i = 0; i < twainCapInfos.length; i++) {
var twainCapInfo = twainCapInfos[i];
// output information about capability identifier, name and current value to the log
console.log("Capability ID: " + twainCapInfo.get_Id() + " Capability name: " + twainCapInfo.get_Name() + " Current value: " + twainCapInfo.get_CurrentValue());
}
}
catch (ex) {
alert(ex);
}
}
Browser Compatibility
See Also
