From: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date: Sun, 16 Sep 2012 08:45:36 +0000 (+0200)
Subject: Call XdbeQueryExtension before of calling any Xdbe function
X-Git-Url: https://git.owens.tech/assets/editable-focus.html/assets/editable-focus.html/git?a=commitdiff_plain;h=ba1e9daeef0d7e6e52a9889d8f7eb61d74480cf0;p=st.git
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