I'm on Windows7 and using Qt SDK 4.8.
Trying to read a file in with QImage but it just doesn't seem to load. That is, QImage(filename) or QImage(filename, "PNG") or QImage.load(filename) always return NULL.

Here's my code:

Qt Code: 
  1. QString fileName = QFileDialog::getOpenFileName(this,
  2.                                                     tr("Open Image"),
  3.                                                     QDir::homePath(),
  4.                                                     tr("Image Files (*.png *.tga *.bmp)"));
  5.  
  6.     if (!fileName.isEmpty())
  7.     {
  8.         targetImage = new QImage(fileName, "PNG");
  9.         if(targetImage->isNull())
  10.         {
  11.             QMessageBox::information(this,
  12.                                      tr("Viewer"),
  13.                                      tr("Cannot load %1.").arg(fileName));
  14.             return;
  15.         }
  16.  
  17.         onScreenImage.setBackgroundRole(QPalette::Base);
  18.         onScreenImage.setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
  19.         onScreenImage.setScaledContents(true);
  20.         onScreenImage.setPixmap(QPixmap::fromImage(*targetImage));
  21.     }
  22. }
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What am I doing wrong?