C++ (Cpp) Matrix::GetElements示例

示例#1

文件： CanvasD2D.cpp 项目： jieah/rainmeter

D2D1_MATRIX_3X2_F CanvasD2D::GetCurrentTransform()
{
	D2D1_MATRIX_3X2_F d2dMatrix;
	Gdiplus::Matrix gdipMatrix;
	m_GdipGraphics->GetTransform(&gdipMatrix);
	gdipMatrix.GetElements((Gdiplus::REAL*)&d2dMatrix);
	return d2dMatrix;
}

示例#2

文件： CanvasD2D.cpp 项目： asdlei00/rainmeter

void CanvasD2D::UpdateTargetTransform()
{
	Gdiplus::Matrix gdipMatrix;
	m_GdipGraphics->GetTransform(&gdipMatrix);

	D2D1_MATRIX_3X2_F d2dMatrix;
	gdipMatrix.GetElements((Gdiplus::REAL*)&d2dMatrix);

	m_Target->SetTransform(d2dMatrix);
	m_CanUseAxisAlignClip =
		d2dMatrix._12 == 0.0f && d2dMatrix._21 == 0.0f &&
		d2dMatrix._31 == 0.0f && d2dMatrix._32 == 0.0f;
}

示例#3

文件： canvas_gdiplus.cpp 项目： Strongc/Chrome_Library

    HDC CanvasGdiplus::BeginPlatformPaint()
    {
        DCHECK(mem_graphics_.get());

        Gdiplus::Matrix matrix;
        mem_graphics_->GetTransform(&matrix);
        Gdiplus::REAL elem[6];
        matrix.GetElements(elem);

        Gdiplus::Region region;
        mem_graphics_->GetClip(&region);
        HRGN hrgn = region.GetHRGN(mem_graphics_.get());

        HDC hdc = mem_graphics_->GetHDC();
        InitializeDC(hdc);

        XFORM xf = { elem[0], elem[1], elem[2], elem[3], elem[4], elem[5] };
        SetWorldTransform(hdc, &xf);

        SelectClipRgn(hdc, hrgn);
        DeleteObject(hrgn);

        return hdc;
    }