create-icon-handle

Arguments: pixmap

Returns an icon handle, which can be used as the icon of a window's titlebar, or as the pixmap-icon property of controls that display pixmaps or passed to copy-to-stream or copy-pixels-to-stream. The pixmap object should contain a mask in addition to the usual texture.

An icon handle is like a pixmap handle (a handle to a device-dependent pixmap that resides in the OS) that has a mask built in, so that the background color or whatever was drawn before the icon can show through the icon.

See also extract-icon-from-file, for creating icons from Windows icon files rather than from Common Graphics pixmaps.

See cg-icons.htm.

GTK Note

Common Graphics icons are actually Common Graphics pixmaps on GTK. This function simply returns its pixmap argument, for compatibility with Windows Common Graphics code.

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Created 2015.5.21.