c:graphics.h:registerbgifont
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| + | ===== registerbgifont ===== | ||
| + | |||
| + | |||
| + | ====Syntax of registerbgifont ==== | ||
| + | <code c> | ||
| + | #include <graphics.h> | ||
| + | int registerbgifont(void (*font)(void)); | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Description of registerbgifont ==== | ||
| + | <code c> | ||
| + | Calling registerbgifont informs the graphics system that the font pointed | ||
| + | to by font was included at link time. This routine checks the linked-in | ||
| + | code for the specified font; if the code is valid, it registers the code | ||
| + | in internal tables. | ||
| + | By using the name of a linked-in font in a call to registerbgifont, you | ||
| + | also tell the compiler (and linker) to link in the object file with that | ||
| + | public name. | ||
| + | If you register a user-supplied font, you must pass the result of | ||
| + | registerbgifont to settextstyle as the font number to be used. | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Example of registerbgifont ==== | ||
| + | <code c> | ||
| + | /* registerbgifont example */ | ||
| + | |||
| + | #include <graphics.h> | ||
| + | #include <stdlib.h> | ||
| + | #include <stdio.h> | ||
| + | #include <conio.h> | ||
| + | |||
| + | int main(void) | ||
| + | { | ||
| + | /* request autodetection */ | ||
| + | int gdriver = DETECT, gmode, errorcode; | ||
| + | int midx, midy; | ||
| + | |||
| + | /* register a font file that was added into GRAPHICS.LIB */ | ||
| + | errorcode = registerbgifont(triplex_font); | ||
| + | |||
| + | /* report any registration errors */ | ||
| + | if (errorcode < 0) { | ||
| + | printf("Graphics error: %s\n", grapherrormsg(errorcode)); | ||
| + | printf("Press any key to halt:"); | ||
| + | |||
| + | getch(); | ||
| + | exit(1); /* terminate with an error code */ | ||
| + | } | ||
| + | |||
| + | /* initialize graphics and local variables */ | ||
| + | initgraph(&gdriver, &gmode, ""); | ||
| + | |||
| + | /* read result of initialization */ | ||
| + | errorcode = graphresult(); | ||
| + | if (errorcode != grOk) { /* an error occurred */ | ||
| + | printf("Graphics error: %s\n", grapherrormsg(errorcode)); | ||
| + | printf("Press any key to halt:"); | ||
| + | getch(); | ||
| + | exit(1); /* terminate with an error code */ | ||
| + | |||
| + | } | ||
| + | |||
| + | midx = getmaxx() / 2; | ||
| + | midy = getmaxy() / 2; | ||
| + | |||
| + | /* select the registered font */ | ||
| + | settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4); | ||
| + | |||
| + | /* output some text */ | ||
| + | settextjustify(CENTER_TEXT, CENTER_TEXT); | ||
| + | outtextxy(midx, midy, "The TRIPLEX FONT"); | ||
| + | |||
| + | /* clean up */ | ||
| + | getch(); | ||
| + | closegraph(); | ||
| + | return 0; | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== See also ==== | ||
| + | [[graphresult]] | ||
| + | [[initgraph]] | ||
| + | [[installuserdriver]] | ||
| + | [[registerbgidriver]] | ||
| + | [[settextstyle]] | ||
| + | |||
| + | |||
| + | ===== output of registerbgifont example ===== | ||
| + | |||
| + | no output of example at the moment | ||
| + | do not hesitate and add it... | ||
| + | |||
| + | |||
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c/graphics.h/registerbgifont.txt · Last modified: 2024/02/16 01:05 (external edit)
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