CopyCString copies null terminated C string src to dest.

CreatePen simulates CreatePen API using ExtCreatePen.

DPIConv converts a value from old DPI to new DPI.

EmptyDialogTemplate allocates an empty dialog template.

FromDefaultDPI convert value from USER_DEFAULT_SCREEN_DPI(96) to a new DPI.

GoString converts a null terminated C string to go string.