clearviewport function

This is a discussion on clearviewport function within the C Programming forums, part of the General Programming Boards category; I need help with viewports! am using C v.2.01 under windows XP. Part of my C program code defines a ...

  1. #1
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    Jan 2007
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    Question clearviewport function

    I need help with viewports!

    am using C v.2.01 under windows XP. Part of my C program code defines a viewport. A later part of the program clears the viewport then the device is also cleared. A drawpoly follows the two routine. The problem is that only a part of the polygon is visible. It appears that the polygon is inscribed in a screen dimension that was actually previously defined as the viewport. Could it be that the viewport still exists? If so, how can i reset the display back to full screen.

  2. #2
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    Oct 2001
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    You can try:
    Code:
       setviewport(0, 0, getmaxx(), getmaxy(), 0);
    Or another possibility is:
    Code:
    cleardevice();

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