From 8154abe07323759a799b3dd9bf1df3c3178fd3e5 Mon Sep 17 00:00:00 2001
From: kappaOne <one.kappa@googlemail.com>
Date: Sun, 27 Oct 2013 01:38:37 +0100
Subject: [PATCH] Set the WM_CLASS property on Linux as its needed for some WM
 to display the app name/class, currently its the same as the window title.

---
 src/native/linux/opengl/org_lwjgl_opengl_Display.c   | 12 ++++++++++++
 src/native/linux/opengles/org_lwjgl_opengl_Display.c | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/native/linux/opengl/org_lwjgl_opengl_Display.c b/src/native/linux/opengl/org_lwjgl_opengl_Display.c
index b5209284..e1fc0e45 100644
--- a/src/native/linux/opengl/org_lwjgl_opengl_Display.c
+++ b/src/native/linux/opengl/org_lwjgl_opengl_Display.c
@@ -187,6 +187,17 @@ static void setWindowTitle(Display *disp, Window window, jlong title, jint len)
 					len);
 }
 
+static void setClassHint(Display *disp, Window window, jlong title) {
+	XClassHint* hint = XAllocClassHint();
+	
+	hint->res_name = (const unsigned char *)(intptr_t)title;
+	hint->res_class = (const unsigned char *)(intptr_t)title;
+	
+	XSetClassHint(disp, window, hint);
+	
+	XFree(hint);
+}
+
 JNIEXPORT jlong JNICALL Java_org_lwjgl_opengl_LinuxDisplay_openDisplay(JNIEnv *env, jclass clazz) {
 	return openDisplay(env);
 }
@@ -213,6 +224,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_LinuxDisplay_nSetTitle(JNIEnv * env
 	Display *disp = (Display *)(intptr_t)display;
 	Window window = (Window)window_ptr;
 	setWindowTitle(disp, window, title, len);
+	setClassHint(disp, window, title);
 }
 
 static void freeIconPixmap(Display *disp) {
diff --git a/src/native/linux/opengles/org_lwjgl_opengl_Display.c b/src/native/linux/opengles/org_lwjgl_opengl_Display.c
index 29e4ba7d..339e3770 100644
--- a/src/native/linux/opengles/org_lwjgl_opengl_Display.c
+++ b/src/native/linux/opengles/org_lwjgl_opengl_Display.c
@@ -184,6 +184,17 @@ static void setWindowTitle(Display *disp, Window window, jlong title, jint len)
 					len);
 }
 
+static void setClassHint(Display *disp, Window window, jlong title) {
+	XClassHint* hint = XAllocClassHint();
+	
+	hint->res_name = (const unsigned char *)(intptr_t)title;
+	hint->res_class = (const unsigned char *)(intptr_t)title;
+	
+	XSetClassHint(disp, window, hint);
+	
+	XFree(hint);
+}
+
 JNIEXPORT jlong JNICALL Java_org_lwjgl_opengl_LinuxDisplay_openDisplay(JNIEnv *env, jclass clazz) {
 	return openDisplay(env);
 }
@@ -207,6 +218,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_LinuxDisplay_nSetTitle(JNIEnv * env
 	Display *disp = (Display *)(intptr_t)display;
 	Window window = (Window)window_ptr;
 	setWindowTitle(disp, window, title, len);
+	setClassHint(disp, window, title);
 }
 
 static void freeIconPixmap(Display *disp) {