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POKeep a stream from fstream open through member functions
 

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    <p>I am trying to keep a stream to a file /dev/fb0 (linux framebuffer) open throughout several Qt member functions. The goal is to use a myscreen::connect function to open up the framebuffer</p> <pre><code>bool myscreen::connect() { std::fstream myscreen_Fb; myscreen_Fb.open("/dev/fb0") QImage* image; image = new QImage(w, h, QImage::Format_RGB888); QScreen::data = image-&gt;bits(); } </code></pre> <p>This would ideally open the frame buffer and create a new QImage to act as a memory buffer for the data being written to the screen. Then my "image" would point to the first visible pixel (memory) on the screen through the bits() function. I have to implement this because my hardware does not support the default memory mapping.</p> <p>I would then like to blit it to the screen with:</p> <pre><code>void myscreen::blit(const QImage &amp;img, const QPoint &amp;topLeft, const QRegion &amp;region) { QScreen::blit(img, topLeft, region); write(myscreen_Fb, image.bits(), image.size()); } </code></pre> <p>I cant seem to get the pointer to the first visible pixel open to use and get complaints from GCC about myscreen_Fb not being declared in the scope. Any ideas?</p> <p><strong><em>update</em></strong></p> <p>I made the changes suggested and declared the function in the class but get this error which is driving me crazy.</p> <pre><code>error: expected constructor, destructor, or type conversion before '.' token </code></pre> <p>It refers to the line which contains:</p> <pre><code>vopuscreenFd.open("/dev/fb0", fstream::out); </code></pre> <p>Bryce</p>
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