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配置qnx6.6  中 screen 环境变量

根据 Screen Graphics Subsystem Developer’s Guide 总结。

1. 停止 screen 进程： slay screen
2. 确保 screen 进程已停止： pidin ar 查看当前运行进程
3. 设置环境变量：GRAPHICS_ROOT

export GRAPHICS_ROOT=/usr/lib/graphics/vmware           

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设置环境变量：LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/usr/lib:/lib:/lib/dll:$GRAPHICS_ROOT:$LD_LIBRARY_PATH           

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运行 screen ： /sbin/screen

正常的话，屏幕会变大，全黑，鼠标出现。 

不能再进行命令行操作。需要用SDP中的Terminal 连接qnx

测试egl

运行/usr/bin/egl-configs 出现如下信息，说明egl可以跑了

# /usr/bin/egl-configs 
EGL_VENDOR = QNX Software Systems
EGL_VERSION = 
EGL_CLIENT_APIS = OpenGL_ES
EGL_EXTENSIONS = EGL_EXT_swap_regions EGL_KHR_image 

+-----------+--------+-----+-------+------+-----------+-------+-------+---------+------+---------+--------+---------+--------+----+-----+-----+-------+-------+----+----+----
----+-------+-----+-------+------+
|           |        |     |       |      |           |       |       |         |      |         |        |         |        |    |     |     |       |       |    |    |    
    |       |    transparent     |
| config id | caveat | red | green | blue | luminance | alpha | depth | stencil | mask | samples | window | pbuffer | pixmap | sw | lin | pre | gles1 | gles2 | vg | gl | nat
ive | level | red | green | blue |
+-----------+--------+-----+-------+------+-----------+-------+-------+---------+------+---------+--------+---------+--------+----+-----+-----+-------+-------+----+----+----
----+-------+-----+-------+------+
|          |  slow  |    |      |     |          |      |      |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |      |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |     |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |     |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |      |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |      |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |     |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |     |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|          |  slow  |    |      |     |          |      |      |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |      |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |      |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |      |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |     |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |     |        |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |     |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
|         |  slow  |    |      |     |          |      |     |       |     |        |    x   |    x    |    x   |    |     |     |   x   |       |    |    |    
    |      | n/a |  n/a  | n/a  |
+-----------+--------+-----+-------+------+-----------+-------+-------+---------+------+---------+--------+---------+--------+----+-----+-----+-------+-------+----+----+----
----+-------+-----+-------+------+           

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demo