Device Control Properties > DevYResolution

[Windows platform only; not supported by PHP and the Community Edition]

Returns / sets the y-resolution in dots per inch for the currently selected output device. If the output device initializes this property, the DevPrintQuality property specifies the x-resolution, in dots per inch (DPI), of the printer.

property integer VPE.DevYResolution

read / write; runtime only

Possible Values:

the y-resolution in DPI

Remarks:

In case of an error, LastError is set to VERR_COMMON. An error may occur if the device does not support setting the y-resolution. You should read this property’s value after setting it, to be sure the value has been accepted. Sometimes the value has not been accepted, but LastError returns no error state (= VERR_OK).

We experienced that some drivers do not allow setting the y-resolution, BEFORE the x-resolution had been changed and vice versa. Also some drivers only accept the same values for both resolutions.

Example:

Doc.DevPrintQuality = 300 // 300 DPI X-Resolution

Doc.DevYResolution = 300 // 300 DPI Y-Resolution