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Function 4 - draw

a line of text

Characteristic:

  * 

class=GramE>eax = 4 is the number of functions

  * 

class=GramE>ebx = X*65536+Y, window or buffer coordinates

  * 

class=GramE>ecx = 0xXXRRGGBB, where

    * RR, GG, BB set the text

color

    * XX=ABFFCSSS (bits):

      * A=1-the drawn line ends

with zero

      * B=1-paint the background

(color = edi)

      * FF sets font and encoding:

        0 = 6x9 cp866

        1 = 8x16 cp866

        2 = 8x16 UTF-16LE

        3 = 8x16 UTF-8

      * C=0-draw to window,

        C=1 - draw to clipboard (

class=SpellE>edi)

      * SSS = (size multiplier)-1,

i.e. 0 = x1, 7 = x8

  * 

class=GramE>edx = pointer to the beginning of the line

  * 

class=GramE>esi = for A=0 string length, for A=1 ignored

  * 

class=GramE>edi = if B=1-background color,

          if

C=1 - pointer to buffer

Returned value:

  * function

does not return a value

Comments:

  * You cannot use B=1 and C=1 at

the same time,

    because

in both cases the edi register is used.

  * If SSS=0, the font may be

smoothed,

    depending

on the system setting.

  * Buffer structure:

Xsize dd

Ysize dd

picture

style='font-family:"Arial","sans-serif";mso-ansi-language:EN-US'> 

class=SpellE>rb Xsize*Ysize*4

; 32 bits

Constants for registers:

class=GramE>eax - SF_DRAW_TEXT (4)