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- #include <fastgraf.h>
- #include <stdio.h>
- #include <stdlib.h>
-
- void main(void);
-
- void main()
- {
- int voice_array[61];
- int i;
- int volume;
-
- if (fg_testmode(9,0) == 0) {
- printf("This program requires a PCjr or ");
- printf("a Tandy 1000 system.\n");
- exit(1);
- }
-
- i = 0;
-
- for (volume = 1; volume <= 15; volume++) {
- voice_array[i++] = 1; /* use channel 1 */
- voice_array[i++] = 500; /* 500 Hz frequency */
- voice_array[i++] = volume; /* variable volume */
- voice_array[i++] = 16; /* duration */
- }
- voice_array[i] = 0;
-
- fg_voices(voice_array,1);
-
- while(fg_playing())
- printf("Still playing...\n");
- }