diff options
Diffstat (limited to 'src/Fl_Image_Surface.cxx')
| -rw-r--r-- | src/Fl_Image_Surface.cxx | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/Fl_Image_Surface.cxx b/src/Fl_Image_Surface.cxx index 96358deaf..9e73c4645 100644 --- a/src/Fl_Image_Surface.cxx +++ b/src/Fl_Image_Surface.cxx @@ -30,14 +30,13 @@ Fl_Image_Surface_Driver *Fl_Image_Surface_Driver::newImageSurfaceDriver(int w, i /** Constructor with optional high resolution. \param w and \param h set the size of the resulting image. The value of the \p high_res - parameter controls whether \p w and \p h are interpreted as pixel or drawing units. + parameter controls whether \p w and \p h are interpreted as pixel or FLTK units. \param high_res If zero, the created image surface is sized at \p w x \p h pixels. - If non-zero, the pixel size of the created image surface follows - the value of the display scaling factor (see Fl_Graphics_Driver::scale()). This gives - the created image surface the same number of pixels as an area of the display of size - \p w x \p h expressed in drawing units. On the Mac OS platform, the image surface pixel - size is always twice as high and wide as \p w and \p h. + If non-zero, the pixel size of the created image surface depends on + the value of the display scale factor (see Fl_Graphics_Driver::scale()): + the resulting image has the same number of pixels as an area of the display of size + \p w x \p h expressed in FLTK units. If \p highres is non-zero, always use Fl_Image_Surface::highres_image() to get the image data. \param pixmap Is used internally by FLTK; applications just use its default value. @@ -94,7 +93,7 @@ Fl_RGB_Image *Fl_Image_Surface::image() { /** Returns a possibly high resolution image made of all drawings sent to the Fl_Image_Surface object. The Fl_Image_Surface object should have been constructed with Fl_Image_Surface(W, H, 1). - The returned Fl_Shared_Image object is scaled to a size of WxH drawing units and may have a + The returned Fl_Shared_Image object is scaled to a size of WxH FLTK units and may have a pixel size larger than these values. The returned object should be deallocated with Fl_Shared_Image::release() after use. \version 1.3.4 |