/// <summary>
/// Render the page to the bitmap.
/// </summary>
/// <param name="page">Page to render.</param>
/// <param name="zoomFactor">Zoom factor to use for transformation.</param>
/// <param name="startX">Left pixel position of the page area to render.</param>
/// <param name="startY">Top pixel position of the page area to render.</param>
/// <param name="sizeX">Width of the page area to render.</param>
/// <param name="sizeY">Height of the page area to render.</param>
/// <param name="flags">Rendering flags to use for rendering.</param>
public void RenderWithTransformation(FPDF_PAGE page, double zoomFactor, int startX, int startY, int sizeX, int sizeY, FPDF_RENDERING_FLAGS flags)
{
// Translation is performed with [1 0 0 1 tx ty].
// Scaling is performed with [sx 0 0 sy 0 0].
FS_MATRIX matrix = new FS_MATRIX {
A = (float)zoomFactor, B = 0, C = 0, D = (float)zoomFactor, E = startX > 0f ? 0f : startX, F = startY > 0f ? 0f : startY
};
FS_RECTF rect = new FS_RECTF {
Left = startX, Right = startX + sizeX, Top = startY, Bottom = startY + sizeY
};
_mainComponent.PDFiumBridge.FPDF_RenderPageBitmapWithMatrix(_bitmapHandle, page, ref matrix, ref rect, flags);
}
/// <summary>
/// Render the page to the bitmap.
/// </summary>
/// <param name="page">Page to render.</param>
/// <param name="startX">Left pixel position of the page area to render.</param>
/// <param name="startY">Top pixel position of the page area to render.</param>
/// <param name="sizeX">Width of the page area to render.</param>
/// <param name="sizeY">Height of the page area to render.</param>
/// <param name="flags">Rendering flags to use for rendering.</param>
public void RenderWithoutTransformation(FPDF_PAGE page, int startX, int startY, int sizeX, int sizeY, FPDF_RENDERING_FLAGS flags)
{
_mainComponent.PDFiumBridge.FPDF_RenderPageBitmap(_bitmapHandle, page, startX, startY, sizeX, sizeY, 0, flags);
}
