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Gnome Scan Reference Manual | ![]() |
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#define GS_DEFINE_PREVIEW_PLUGIN (Name, name, options) GnomeScanPreviewPlugin; GnomeScanPreviewPlugin* gnome_scan_preview_plugin (GType type, GnomeScanPlugin *plugin, GParamSpec *pspec, GtkWidget *gspa, GnomeScanSettings *settings, GtkBox *bbox); void gnome_scan_preview_plugin_freeze (GnomeScanPreviewPlugin *gspp); void gnome_scan_preview_plugin_thaw (GnomeScanPreviewPlugin *gspp); void gnome_scan_preview_plugin_changed (GnomeScanPreviewPlugin *gspp); void gnome_scan_preview_plugin_draw_buffer (GnomeScanPreviewPlugin *gspp, GtkWidget *gspa, cairo_t *cr); void gnome_scan_preview_plugin_destroy (GnomeScanPreviewPlugin *gspp);
GnomeScanPreviewPlugin +----GnomeScanPreviewPluginRotation +----GnomeScanPreviewPluginArea
#define GS_DEFINE_PREVIEW_PLUGIN(Name, name, options)
Generate glib boiler plate code for creatin a new preview plugin.
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Class name |
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function prefix |
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options to watch. |
typedef struct { GnomeScanPlugin* plugin; GtkWidget* preview_area; GnomeScanSettings* settings; GParamSpec* pspec; gulong settings_changed; gulong preview_changed; gboolean frozen; } GnomeScanPreviewPlugin;
GnomeScanPreviewPlugin* gnome_scan_preview_plugin (GType type, GnomeScanPlugin *plugin, GParamSpec *pspec, GtkWidget *gspa, GnomeScanSettings *settings, GtkBox *bbox);
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subtype of GnomeScanPreviewPlugin to instanciate |
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the GSParamSpec to manage |
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the GnomeScanPreviewArea to extend |
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the GnomeScanSettings where to store value |
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Returns : |
a GnomeScanPreviewPlugin |
void gnome_scan_preview_plugin_freeze (GnomeScanPreviewPlugin *gspp);
Freeze the plugin so that it doesn't react on value changes.
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a GnomeScanPreviewPlugin |
void gnome_scan_preview_plugin_thaw (GnomeScanPreviewPlugin *gspp);
Thaw the plugin so that it react on value changes.
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a GnomeScanPreviewPlugin |
void gnome_scan_preview_plugin_changed (GnomeScanPreviewPlugin *gspp);
To be called when the preview has been changed.
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a GnomeScanPreviewPlugin |
void gnome_scan_preview_plugin_draw_buffer (GnomeScanPreviewPlugin *gspp, GtkWidget *gspa, cairo_t *cr);
For use by GnomeScanPreviewArea
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a GnomeScanPreviewPlugin |
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a GnomeScaPreviewArea |
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a cairo context |
Stability Level: Private
void gnome_scan_preview_plugin_destroy (GnomeScanPreviewPlugin *gspp);
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the dying GnomeScanPreviewPlugin |