如何在gWidgets RGtk2中更改形状的鼠标光标? [英] how can i change the shape mouse cursor in gWidgets RGtk2?

问题描述

在gWidgets中ggraphics的绘图区域中，将鼠标光标更改为"GDK_TCROSS"，但我希望使用与gwindow"GDK_LEFT_PTR"相同的鼠标光标:

In a Drawing Area of ggraphics in gWidgets changes the mouse cursor to "GDK_TCROSS",but i want the same mouse cursor of the gwindow "GDK_LEFT_PTR":

 library(gWidgets)
 library(gWidgetsRGtk2)
 library(RGtk2)
 options(guiToolkit = "RGtk2")
 w=gwindow("")
 g=ggraphics(cont=w,no_popup=T,do.rubber.banding = F)
 plot(x,y)
 c=gdkCursorNew("GDK_TOP_LEFT_ARROW")
 getToolkitWidget(g)$ModifyCursor(c)

  or

 gtkWidgetModifyCursor(getToolkitWidget(g),"GDK_TCROSS","GDK_LEFT_PTR")

但这不起作用

推荐答案

gtkWidgetModifyCursor修改光标的颜色.您需要通过gdkWindowSetCursor设置光标.为此，您需要获取与小部件关联的窗口:

gtkWidgetModifyCursor modifies the colors of the cursor. You need to set the cursor through gdkWindowSetCursor. For that you need to grab the window associated with the widget:

getToolkitWidget(g)$getWindow()$setCursor(c)

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