how to draw a rectangle with outline only using 'glRecti(...)' ?

Hi,

the rectangle can be drew using 'glRecti(...)', but the rectangle is filled by default.
how to draw a rectangle with outline only using 'glRecti(...)' ?

Thanks,

Hi george,

you shouldn't use deprecated OpenGL.

Take a look to this modern Hello Triangle

To draw a surface with outlined polygons,
            call
           
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);

https://www.opengl.org/sdk/docs/man3/xhtml/glPolygonMode.xml

elect wrote

you shouldn't use deprecated OpenGL.

Actually, understanding the fixed pipeline is still very useful as there is still some hardware that doesn't support OpenGL 4.

Which hw are you using and targetting, george?

By the way, glRect shouldn't be used, rather use GL_POLYGON and pass 4 vertices, it's more flexible, it's easier to maintain on the long term, especially to switch to VBOs or to use ImmModeSink in the meantime.