gtkWidgetSendExpose {RGtk2} | R Documentation

## gtkWidgetSendExpose

### Description

Very rarely-used function. This function is used to emit an expose event signals on a widget. This function is not normally used directly. The only time it is used is when propagating an expose event to a child `NO_WINDOW` widget, and that is normally done using `gtkContainerPropagateExpose`.

### Usage

    gtkWidgetSendExpose(object, event)

### Arguments

``object`` | a `GtkWidget`
``event`` | a expose `GdkEvent`

### Details

If you want to force an area of a window to be redrawn, use `gdkWindowInvalidateRect` or `gdkWindowInvalidateRegion`. To cause the redraw to be done immediately, follow that call with a call to `gdkWindowProcessUpdates`.

### Value

[integer] return from the event signal emission (`TRUE` if the event was handled)

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]