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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_400
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428_02
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examples
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kbdshift.c
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C/C++ Source or Header
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1994-03-13
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861b
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46 lines
/*
** KBDSHIFT.C: Displays the state of the shift keys until
** the user presses <Escape>.
*/
#include <pictor.h>
char *labels[] = {
"Right shift key down",
"Left shift key down",
"Ctrl-key down",
"Alt key down",
"Scroll Lock on",
"Num Lock on",
"Caps Lock on",
"Insert on",
};
void main()
{
int i,shiftstate;
/* initialize library */
initvideo();
/* clear screen and hide cursor */
cls();
showcurs(FALSE);
setvpos(10,1);
vputs("Press <Escape> to end");
while(!kbdready() || kbdread() != ESCAPE_KEY) {
shiftstate = kbdshift();
for(i = 0;i < 8;i++) {
setvpos(1 + i,1);
xprintf(vputs,"%s: %s",labels[i],
(shiftstate & (0x01 << i)) ? "Yes" : "No ");
}
}
/* restore screen */
showcurs(TRUE);
cls();
}