XSetFont(3) XLIB FUNCTIONS XSetFont(3)

XSetFont - GC convenience routines

int XSetFont(Display *display, GC gc, Font font);

Specifies the connection to the X server.
Specifies the font.
Specifies the GC.

The XSetFont function sets the current font in the specified GC.

XSetFont can generate BadAlloc, BadFont, and BadGC errors.

The server failed to allocate the requested resource or server memory.
A value for a Font or GContext argument does not name a defined Font.
A value for a GContext argument does not name a defined GContext.

XCreateGC(3), XQueryBestSize(3), XSetArcMode(3), XSetClipOrigin(3), XSetFillStyle(3), XSetLineAttributes(3), XSetState(3), XSetTile(3)
Xlib - C Language X Interface

libX11 1.8.9 X Version 11