Differences

This shows you the differences between two versions of the page.

--- en:ibm:prcp:vio:getfont [2016/02/04 10:45] – created valerius
+++ en:ibm:prcp:vio:getfont [2016/09/15 05:08] (current) – valerius
@@ Line 1: / Line 1: @@
 ==== VioGetFont ====
-**Bindings**: C, MASM
+**Bindings**: [[getfont#C bindings|C]], [[getfont#MASM bindings|MASM]]
 This call returns either the font table of the size specified or the font in use.
@@ Line 58: / Line 58: @@
 For [[en:ibm:prcp:vio:getfont|VioGetFont]] specifying reqtype = 1, return ROM font, the font returned is derived from the fonts contained in the system, EGA, VGA, and PS/2 Display Adapter BIOS data areas as applicable. There is an exception for the EGA, VGA and PS/2 Display Adapter when [[en:ibm:prcp:vio:setcp|VioSetCp]] or [[en:ibm:prcp:vio:setfont|VioSetFont]] has been issued. In that case, the font of the size requested is returned from the active code page or the list of user fonts already set.
+=== C bindings ===
+<code c>
+typedef struct _VIOFONTINFO {   /* viofi */
+  USHORT  cb;                 /* length of this structure */
+  USHORT  type;               /* request type */
+  USHORT  cxCell;             /* pel columns in character cell */
+  USHORT  cyCell;             /* pel rows in character cell */
+  PVOID   pbData;             /* requested font table (returned) */
+  USHORT  cbData;             /* length of caller supplied data area
+                                (in bytes) */
+} VIOFONTINFO;
+#define INCL_VIO
+USHORT  rc = VioGetFont(RequestBlock, VioHandle);
+PVIOFONTINFO     RequestBlock;  /* Request block */
+HVIO             VioHandle;     /* Vio handle */
+USHORT           rc;            /* return code */
+</code>
+=== MASM bindings ===
+<code asm>
+VIOFONTINFO struc
+  viofi_cb      dw  ? ;length of this structure
+  viofi_type    dw  ? ;request type
+  viofi_cxCell  dw  ? ;pel columns in character cell
+  viofi_cyCell  dw  ? ;pel rows in character cell
+  viofi_pbData  dd  ? ;requested font table (returned)
+  viofi_cbData  dw  ? ;length of caller supplied data area (in bytes)
+VIOFONTINFO ends
+EXTRN  VioGetFont:FAR
+INCL_VIO            EQU 1
+PUSH@  OTHER   RequestBlock  ;Request block
+PUSH   WORD    VioHandle     ;Vio handle
+CALL   VioGetFont
+Returns WORD
+</code>