49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#include "xlib.h"
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static Object P_List_Extensions (d) Object d; {
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Object ret;
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int n;
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register i;
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register char **p;
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GC_Node;
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Check_Type (d, T_Display);
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Disable_Interrupts;
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p = XListExtensions (DISPLAY(d)->dpy, &n);
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Enable_Interrupts;
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ret = Make_Vector (n, Null);
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GC_Link (ret);
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for (i = 0; i < n; i++) {
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Object e;
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e = Make_String (p[i], strlen (p[i]));
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VECTOR(ret)->data[i] = e;
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}
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GC_Unlink;
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XFreeExtensionList (p);
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return ret;
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}
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static Object P_Query_Extension (d, name) Object d, name; {
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int opcode, event, error;
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Object ret, t;
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GC_Node2;
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Check_Type (d, T_Display);
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if (!XQueryExtension (DISPLAY(d)->dpy, Get_Strsym (name), &opcode,
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&event, &error))
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return False;
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t = ret = P_Make_List (Make_Integer (3), Null);
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GC_Link2 (ret, t);
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Car (t) = (opcode ? Make_Integer (opcode) : False); t = Cdr (t);
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Car (t) = (event ? Make_Integer (event) : False); t = Cdr (t);
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Car (t) = (error ? Make_Integer (error) : False);
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GC_Unlink;
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return ret;
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}
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elk_init_xlib_extension () {
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Define_Primitive (P_List_Extensions, "list-extensions", 1, 1, EVAL);
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Define_Primitive (P_Query_Extension, "query-extension", 2, 2, EVAL);
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}
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