[x11] prevent usage of invalid id in GetWindowID

linev · linev · commit de932a71dadd · 2026-03-31T15:42:14.000+02:00
Appears in TASImage
diff --git a/graf2d/x11/src/TGX11.cxx b/graf2d/x11/src/TGX11.cxx
@@ -1213,6 +1213,7 @@ void TGX11::GetTextExtent(UInt_t &w, UInt_t &h, char *mess)
 
 Window_t TGX11::GetWindowID(int wid)
 {
+   if (fWindows.count(wid) == 0) return 0;
    return (Window_t) fWindows[wid]->fWindow;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1213,6 +1213,7 @@ void TGX11::GetTextExtent(UInt_t &w, UInt_t &h, char *mess)`
`1213`	`1213`
`1214`	`1214`	`Window_t TGX11::GetWindowID(int wid)`
`1215`	`1215`	`{`
	`1216`	`+ if (fWindows.count(wid) == 0) return 0;`
`1216`	`1217`	`return (Window_t) fWindows[wid]->fWindow;`
`1217`	`1218`	`}`
`1218`	`1219`