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Qt-interest Archive, March 2002
QImage and QColor

• Subject: QImage and QColor
• From: Kent Vander Velden <graphix@xxxxxxxxxxx>
• Date: Mon, 18 Mar 2002 09:38:43 CST
• To: qt-interest@xxxxxxxxxxxxx

  Can QColor::pixel() be used as the pixel value for QImage::fill()
and get the correct color?  The following are examples of what I am 
trying to do and what works.  This is using Qt 2.3.2 on a Linux
system.

  The following does not yield an image with the "correct" color:
    QImage image;
    QColor bg("red");
    image.create(640, 480, 32);
    image.fill(bg.pixel());

  The following does yield an image with the "correct" color:
    QImage image;
    QColor bg("red");
    image.create(640, 480, 32);
    image.fill((bg.red() << 16) | (bg.green() << 8) | bg.blue());

  Thanks.

---
Kent Vander Velden
kent@iastate.edu