ID2D1RenderTarget：：FillRoundedRectangle (constD2D1_ROUNDED_RECT*，ID2D1Brush*) 方法 (d2d1.h)

绘制指定圆角矩形的内部。

语法

void FillRoundedRectangle(
       const D2D1_ROUNDED_RECT *roundedRect,
  [in] ID2D1Brush              *brush
);

参数

roundedRect

类型：[in] const D2D1_ROUNDED_RECT*

要绘制的圆角矩形的维度（以设备无关像素为单位）。

[in] brush

类型：[in] ID2D1Brush*

用于绘制圆角矩形内部的画笔。

返回值

无

备注

如果此方法失败，此方法不会返回错误代码。 若要确定绘制操作 (（如 FillRoundedRectangle) ）是否失败，检查 ID2D1RenderTarget：：EndDraw 或 ID2D1RenderTarget：：Flush 方法返回的结果。

示例

以下示例使用 DrawRoundedRectangle 和 FillRoundedRectangle 方法来轮廓和填充圆角矩形。 此示例生成如下图所示的输出。

//  Called whenever the application needs to display the client
//  window.
HRESULT DrawAndFillRoundedRectangleExample::OnRender()
{
    HRESULT hr;

    // Create the render target and brushes if they
    // don't already exists.
    hr = CreateDeviceResources();

    if (SUCCEEDED(hr))
    {
        // Retrieve the size of the render target.
        D2D1_SIZE_F renderTargetSize = m_pRenderTarget->GetSize();

        m_pRenderTarget->BeginDraw();
        m_pRenderTarget->SetTransform(D2D1::Matrix3x2F::Identity());
        m_pRenderTarget->Clear(D2D1::ColorF(D2D1::ColorF::White));

        // Paint a grid background.
        m_pRenderTarget->FillRectangle(
            D2D1::RectF(0.0f, 0.0f, renderTargetSize.width, renderTargetSize.height),
            m_pGridPatternBitmapBrush
            );

        // Define a rounded rectangle.
        D2D1_ROUNDED_RECT roundedRect = D2D1::RoundedRect(
            D2D1::RectF(20.f, 20.f, 150.f, 100.f),
            10.f,
            10.f
            );

        // Draw the rectangle.
        m_pRenderTarget->DrawRoundedRectangle(roundedRect, m_pBlackBrush, 10.f);

        // Apply a translation transform.
        m_pRenderTarget->SetTransform(D2D1::Matrix3x2F::Translation(200.f, 0.f));

        // Draw the rounded rectangle again, this time with a dashed stroke.
        m_pRenderTarget->DrawRoundedRectangle(roundedRect, m_pBlackBrush, 10.f, m_pStrokeStyle);

        // Apply another translation transform.
        m_pRenderTarget->SetTransform(D2D1::Matrix3x2F::Translation(0.f, 150.f));

        // Draw, then fill the rounded rectangle.
        m_pRenderTarget->DrawRoundedRectangle(roundedRect, m_pBlackBrush, 10.f, m_pStrokeStyle);
        m_pRenderTarget->FillRoundedRectangle(roundedRect, m_pSilverBrush);

        // Apply another translation transform.
        m_pRenderTarget->SetTransform(D2D1::Matrix3x2F::Translation(200.f, 150.f));

        // Fill, then draw the rounded rectangle.
        m_pRenderTarget->FillRoundedRectangle(roundedRect, m_pSilverBrush);
        m_pRenderTarget->DrawRoundedRectangle(roundedRect, m_pBlackBrush, 10.f, m_pStrokeStyle);

        hr = m_pRenderTarget->EndDraw();

        if (hr == D2DERR_RECREATE_TARGET)
        {
            hr = S_OK;
            DiscardDeviceResources();
        }
    }

    return hr;
}

要求

目标平台	Windows
标头	d2d1.h
Library	D2d1.lib
DLL	D2d1.dll

另请参阅

D2D1：：RoundedRect

如何绘制和填充基本形状

ID2D1RenderTarget