From: Roberto E. Vargas Caballero Date: Sun, 16 Sep 2012 08:45:36 +0000 (+0200) Subject: Call XdbeQueryExtension before of calling any Xdbe function X-Git-Url: https://jasonwoof.com/gitweb/?p=st.git;a=commitdiff_plain;h=ba1e9daeef0d7e6e52a9889d8f7eb61d74480cf0 Call XdbeQueryExtension before of calling any Xdbe function XdbeQueryExtension() tells to the caller if the Xdbe extension is present in the X server, so it should be called for sanity. But like is said in XdbeQueryExtension(3): No other Xdbe functions may be called before this function. If a client violates this rule, the effects of all subsequent Xdbe calls that it makes are undefined. it is mandatory call this function. --- st.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- diff --git a/st.c b/st.c index 2e1ac67..b013bca 100644 --- a/st.c +++ b/st.c @@ -1970,7 +1970,7 @@ xinit(void) { XSetWindowAttributes attrs; Cursor cursor; Window parent; - int sw, sh; + int sw, sh, major, minor; if(!(xw.dpy = XOpenDisplay(NULL))) die("Can't open display\n"); @@ -2021,9 +2021,10 @@ xinit(void) { CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask | CWColormap, &attrs); + if(!XdbeQueryExtension(xw.dpy, &major, &minor)) + die("Xdbe extension is not present\n"); xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied); - /* input methods */ xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL); xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing