Operator Reference

query_fontT_query_fontQueryFontQueryFontquery_font (Operator)

query_fontT_query_fontQueryFontQueryFontquery_font — Query the available fonts.

Signature

query_font( : : WindowHandle : Font)

Description

query_fontquery_fontQueryFontQueryFontquery_font queries the fonts available for text output in the output window. They can be set with the operator set_fontset_fontSetFontSetFontset_font using the appropriate syntax. Fonts are used by the operators write_stringwrite_stringWriteStringWriteStringwrite_string, read_charread_charReadCharReadCharread_char, read_stringread_stringReadStringReadStringread_string and new_linenew_lineNewLineNewLinenew_line.

Attention

For different machines the available fonts may differ a lot. Therefore query_fontquery_fontQueryFontQueryFontquery_font will return different fonts on different machines.

Execution Information

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Processed without parallelization.

Parameters

WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control) window → (handle)

Window handle.

FontFontFontfontfont (output_control) string-array → (string)

Tuple with available font names.

Example (HDevelop)

open_window(0,0,-1,-1,'root','visible','',WindowHandle)
set_check('~text')
query_font(WindowHandle,Fontlist)
set_color(WindowHandle,'white')
for i:=0 to |Fontlist|-1 by 1
  set_display_font (WindowHandle,16,Fontlist[i],'true','false')
  write_string(WindowHandle,Fontlist[i])
  new_line(WindowHandle)
endfor

Result

query_fontquery_fontQueryFontQueryFontquery_font returns 2 ( H_MSG_TRUE) .

Possible Predecessors

open_windowopen_windowOpenWindowOpenWindowopen_window

Possible Successors

set_fontset_fontSetFontSetFontset_font, write_stringwrite_stringWriteStringWriteStringwrite_string, read_stringread_stringReadStringReadStringread_string, read_charread_charReadCharReadCharread_char

Module

Foundation

Operators