uEye Camera Manual Version 4.92
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USB 3 uEye XC |
USB 3 uEye XC |
Syntax
INT is_Zoom (HIDS hCam, UINT nCommand, void *pParam, UINT nSizeOfParam)
Description
is_Zoom() controls the zoom function of the lens or sensor (digital zoom) if supported by your camera.
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This function is currently supported by the following camera models: •UI-3013XC |
The nCommand input parameter is used to select the function mode. The pParam input parameter depends on the selected function mode. If you select functions for setting or returning a value, pParam contains a pointer to a variable of the UINT type. The size of the memory area to which pParam refers is specified in the nSizeOfParam input parameter.Input parameters
hCam |
Camera handle |
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pParam |
Pointer to a function parameter, whose function depends on nCommand. |
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nSizeOfParam |
Size (in bytes) of the memory area to which pParam refers. |
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Status flags from ZOOM_CAPABILITY_FLAGS
ZOOM_CAP_INVALID |
The camera does not support the zoom function |
ZOOM_CAP_DIGITAL_ZOOM |
The camera supports digital zoom |
Return values
IS_CANT_COMMUNICATE_WITH_DRIVER |
Communication with the driver failed because no driver has been loaded. |
IS_CANT_OPEN_DEVICE |
An attempt to initialize or select the camera failed (no camera connected or initialization error). |
IS_INVALID_CAMERA_HANDLE |
Invalid camera handle |
IS_INVALID_PARAMETER |
One of the submitted parameters is outside the valid range or is not supported for this sensor or is not available in this mode. |
IS_IO_REQUEST_FAILED |
An IO request from the uEye driver failed. Possibly the versions of the ueye_api.dll (API) and the driver file (ueye_usb.sys or ueye_eth.sys) do not match. |
IS_NO_SUCCESS |
General error message |
IS_NOT_SUPPORTED |
The camera model used here does not support this function or setting. |
IS_NULL_POINTER |
Invalid array |
IS_SUCCESS |
Function executed successfully |
double dZoomValue = 0;
nRet = is_Zoom(hCam, ZOOM_CMD_DIGITAL_GET_VALUE_DEFAULT, (void*)&dZoomValue, sizeof(dZoomValue));
if (nRet == IS_SUCCESS)
{
nRet = is_Zoom(hCam, ZOOM_CMD_DIGITAL_SET_VALUE, (void*)&dZoomValue, sizeof(dZoomValue));
UpdateZoomControls();
}
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