自绘

gtk user control自绘控件

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ubuntu下gtk库是默认已安装的，开发部署很方便，以下是我写的自绘控件例子：

EuhatChildWnd.h

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#pragma once
 
struct _cairo_surface;
struct _GtkWidget;
 
class EuhatChildWnd
{
public:
	EuhatChildWnd(int width, int height);
	~EuhatChildWnd();
 
	void clear();
	void drawBrush(struct _GtkWidget *widget, double x, double y);
 
	struct _GtkWidget *drawingArea_;
	struct _cairo_surface *surface_;
 
	double xFrom_;
	double yFrom_;
};

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