Technical Q&A

QTICM 04 - GDGetScale (1-May-95)

GDGetScale returns the current scale of the given screen graphics device.

pascal OSErr GDGetScale(GDHandle gdh,Fixed *scale,short *flags)

gdh A handle to a screen graphics device.

scale Pointer to a fixed point field to hold the scale result.

flags Pointer to a short integer. It returns the status parameter flags for the video driver. For now, 0 is always returned in this field.

Errors:

cDevErr Not a screen device.

controlErr Video driver can not respond to this call.