LINUX进程名，初步看有两种：

前后对比：

• 改名之前的显示

•  改名之后的显示

•  具体代码

#include <stdio.h>
#include <gtk/gtk.h>
#include <stdlib.h>
#include <sys/prctl.h>

#define WINDOW_WIDTH  500
#define WINDOW_HEIGHT 300

#define WINDOW_BG_COLOR_R 0x0000
#define WINDOW_BG_COLOR_G 0x0000
#define WINDOW_BG_COLOR_B 0xFFFF

#define WINDOW_TITLE      "泰山Office"


/*创建示例窗口*/
static void start_window()
{
    GtkWidget *window;
    GdkColor color;

    window = gtk_window_new(    GTK_WINDOW_TOPLEVEL);
    gtk_window_set_position(    GTK_WINDOW(window), GTK_WIN_POS_CENTER);
    gtk_window_set_default_size(GTK_WINDOW(window), WINDOW_WIDTH, WINDOW_HEIGHT);
    gtk_window_set_title(       GTK_WINDOW(window), WINDOW_TITLE);

    color.red   = WINDOW_BG_COLOR_R;
    color.green = WINDOW_BG_COLOR_G;
    color.blue  = WINDOW_BG_COLOR_B;    
    gtk_widget_modify_bg(window, GTK_STATE_NORMAL, &color);

    g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(gtk_main_quit), NULL);

    gtk_widget_show(window);
}

static void setName4TaskBar(int argc, char **argv, const char *title)
{
#if 1
   strcpy(argv[0], title);
#else
    //从代码分析来看，可以直接修改
    char*  pLast;
    char*  pFirst;

    size_t size = 0;
    pLast = argv[0];
    for (int i = 0; i<argc; ++i) {
        pLast = argv[i] + strlen(argv[i]) + 1;
    }

    pLast += strlen(pLast);

    pFirst = argv[0];
    argv[1] = NULL;

    memset( pFirst, 0x00,  pLast - pFirst);
    strncpy(pFirst, title, pLast - pFirst);
#endif
}

static void setNameForPsCommand(const char* pName)
{
    prctl(PR_SET_NAME, pName);
}

int main(int argc,char *argv[])
{
    for (int i = 0; i<argc; ++i)
    {
        printf("%d=%s\n", i, argv[i]);
    } 

    //在任务栏上分组用到
    setName4TaskBar(argc, argv, "Office 4 TaskBar");

    //运行程序，另起一个终端，使用ps -a就可以看到这个。
    setNameForPsCommand("Office 4 ps");

    gtk_init(NULL, NULL);

    start_window();

    gtk_main();

    return 0;
}

• 编译脚本

#!/bin/bash

COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/gtk-2.0"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/glib-2.0"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/pango-1.0"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/cairo"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/gdk-pixbuf-2.0"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/include/atk-1.0"

COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/lib/x86_64-linux-gnu/glib-2.0/include"
COMPILE_INCLUDE=${COMPILE_INCLUDE}" -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include"

COMPILE_LINK=${COMPILE_LINK}" -lgobject-2.0 -lgtk-x11-2.0"

OUTPUT_FILE=test
if [ -f ${OUTPUT_FILE} ]; then
    rm ${OUTPUT_FILE}
fi
echo ${COMPILE_INCLUDE_LINK}
gcc \
    -o ${OUTPUT_FILE} \
    gtk.cpp \
    ${COMPILE_INCLUDE} \
    ${COMPILE_LINK}