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OnPaintBackground

网络绘制控制项的背景

OnPaintBackground

OnPaintBackground

OnPaintBackground

绘制控制项的背景

... NudgeLeft 移动选取范围向左。(继承自 OnPaintBackground 绘制控制项的背景。(继承自 ProcessCmdKey 处理命令按键。( …

1

When overriding OnPaintBackground in a derived class it is not necessary to call the base class 's OnPaintBackground.

在派生类中重写 OnPaintBackground 时，没有必要调用基类的 OnPaintBackground 。

2

You might want to invoke the OnPaintBackground if, for instance , you want to draw a gradient-colored background for your control .

在某些情况下（例如需要为控件绘制颜色渐变的背景），您可能需要调用 OnPaintBackground 。

3

When overriding the OnPaintBackground method , a derived class is not required to invoke the OnPaintBackground method of its base class .

当重写 OnPaintBackground 方法时，不要求派生类调用其基类的 OnPaintBackground 方法。

4

Override OnPaintBackground to prevent Windows from erasing the background and causing flicker .

重写 OnPaintBackground 以防止 Windows 清除背景并引起闪烁。

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