Basic APIs and tests for extracting annotations

1. Added API for extracting annotation properties:
  * Added testing flag "--annot" that outputs the annotation properties
into a .txt file.
  * Added two embedder tests covering all the API functions.

Bug=pdfium:737
Change-Id: I95943a9b2b3d5d431bc8a74a31b27b4f4b521026
Reviewed-on: https://pdfium-review.googlesource.com/6092
Commit-Queue: Jane Liu <janeliulwq@google.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

5 files changed, 391 insertions, 0 deletions

diff --git a/fpdfsdk/fpdfannot.cpp b/fpdfsdk/fpdfannot.cpp
new file mode 100644
index 0000000000..6e5b7ba063
--- /dev/null
+++ b/fpdfsdk/fpdfannot.cpp
@@ -0,0 +1,238 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "public/fpdf_annot.h"
+
+#include "core/fpdfapi/page/cpdf_page.h"
+#include "core/fpdfapi/parser/cpdf_array.h"
+#include "core/fpdfapi/parser/cpdf_dictionary.h"
+#include "core/fpdfdoc/cpdf_annot.h"
+#include "core/fpdfdoc/cpvt_color.h"
+#include "core/fpdfdoc/cpvt_generateap.h"
+#include "fpdfsdk/fsdk_define.h"
+
+// These checks ensure the consistency of annotation subtype values across core/
+// and public.
+static_assert(static_cast<int>(CPDF_Annot::Subtype::UNKNOWN) ==
+                  FPDF_ANNOT_UNKNOWN,
+              "CPDF_Annot::UNKNOWN value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::TEXT) == FPDF_ANNOT_TEXT,
+              "CPDF_Annot::TEXT value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::LINK) == FPDF_ANNOT_LINK,
+              "CPDF_Annot::LINK value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::FREETEXT) ==
+                  FPDF_ANNOT_FREETEXT,
+              "CPDF_Annot::FREETEXT value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::LINE) == FPDF_ANNOT_LINE,
+              "CPDF_Annot::LINE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::SQUARE) ==
+                  FPDF_ANNOT_SQUARE,
+              "CPDF_Annot::SQUARE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::CIRCLE) ==
+                  FPDF_ANNOT_CIRCLE,
+              "CPDF_Annot::CIRCLE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::POLYGON) ==
+                  FPDF_ANNOT_POLYGON,
+              "CPDF_Annot::POLYGON value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::POLYLINE) ==
+                  FPDF_ANNOT_POLYLINE,
+              "CPDF_Annot::POLYLINE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::HIGHLIGHT) ==
+                  FPDF_ANNOT_HIGHLIGHT,
+              "CPDF_Annot::HIGHLIGHT value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::UNDERLINE) ==
+                  FPDF_ANNOT_UNDERLINE,
+              "CPDF_Annot::UNDERLINE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::SQUIGGLY) ==
+                  FPDF_ANNOT_SQUIGGLY,
+              "CPDF_Annot::SQUIGGLY value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::STRIKEOUT) ==
+                  FPDF_ANNOT_STRIKEOUT,
+              "CPDF_Annot::STRIKEOUT value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::STAMP) == FPDF_ANNOT_STAMP,
+              "CPDF_Annot::STAMP value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::CARET) == FPDF_ANNOT_CARET,
+              "CPDF_Annot::CARET value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::INK) == FPDF_ANNOT_INK,
+              "CPDF_Annot::INK value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::POPUP) == FPDF_ANNOT_POPUP,
+              "CPDF_Annot::POPUP value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::FILEATTACHMENT) ==
+                  FPDF_ANNOT_FILEATTACHMENT,
+              "CPDF_Annot::FILEATTACHMENT value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::SOUND) == FPDF_ANNOT_SOUND,
+              "CPDF_Annot::SOUND value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::MOVIE) == FPDF_ANNOT_MOVIE,
+              "CPDF_Annot::MOVIE value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::WIDGET) ==
+                  FPDF_ANNOT_WIDGET,
+              "CPDF_Annot::WIDGET value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::SCREEN) ==
+                  FPDF_ANNOT_SCREEN,
+              "CPDF_Annot::SCREEN value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::PRINTERMARK) ==
+                  FPDF_ANNOT_PRINTERMARK,
+              "CPDF_Annot::PRINTERMARK value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::TRAPNET) ==
+                  FPDF_ANNOT_TRAPNET,
+              "CPDF_Annot::TRAPNET value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::WATERMARK) ==
+                  FPDF_ANNOT_WATERMARK,
+              "CPDF_Annot::WATERMARK value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::THREED) ==
+                  FPDF_ANNOT_THREED,
+              "CPDF_Annot::THREED value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::RICHMEDIA) ==
+                  FPDF_ANNOT_RICHMEDIA,
+              "CPDF_Annot::RICHMEDIA value mismatch");
+static_assert(static_cast<int>(CPDF_Annot::Subtype::XFAWIDGET) ==
+                  FPDF_ANNOT_XFAWIDGET,
+              "CPDF_Annot::XFAWIDGET value mismatch");
+
+DLLEXPORT int STDCALL FPDFPage_GetAnnotCount(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage || !pPage->m_pFormDict)
+    return 0;
+  CPDF_Array* pAnnots = pPage->m_pFormDict->GetArrayFor("Annots");
+  return pAnnots ? pAnnots->GetCount() : 0;
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetAnnot(FPDF_PAGE page,
+                                              int index,
+                                              FPDF_ANNOTATION* annot) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage || !pPage->m_pFormDict || index < 0 || !annot)
+    return false;
+  CPDF_Array* pAnnots = pPage->m_pFormDict->GetArrayFor("Annots");
+  if (!pAnnots || static_cast<size_t>(index) >= pAnnots->GetCount())
+    return false;
+
+  CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetDirectObjectAt(index));
+  *annot = FPDFAnnotationFromCPDFDictionary(pDict);
+  return *annot ? true : false;
+}
+
+DLLEXPORT FPDF_ANNOTATION_SUBTYPE STDCALL
+FPDFAnnot_GetSubtype(FPDF_ANNOTATION annot) {
+  CPDF_Dictionary* pAnnotDict = CPDFDictionaryFromFPDFAnnotation(annot);
+  if (!pAnnotDict)
+    return FPDF_ANNOT_UNKNOWN;
+  return static_cast<FPDF_ANNOTATION_SUBTYPE>(
+      CPDF_Annot::StringToAnnotSubtype(pAnnotDict->GetStringFor("Subtype")));
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFAnnot_GetColor(FPDF_ANNOTATION annot,
+                                               FPDFANNOT_COLORTYPE type,
+                                               unsigned int* R,
+                                               unsigned int* G,
+                                               unsigned int* B,
+                                               unsigned int* A) {
+  CPDF_Dictionary* pAnnotDict = CPDFDictionaryFromFPDFAnnotation(annot);
+  if (!pAnnotDict || !R || !G || !B || !A)
+    return false;
+
+  CPDF_Array* pColor = pAnnotDict->GetArrayFor(
+      type == FPDFANNOT_COLORTYPE_InteriorColor ? "IC" : "C");
+  *A =
+      (pAnnotDict->KeyExist("CA") ? pAnnotDict->GetNumberFor("CA") : 1) * 255.f;
+  if (!pColor) {
+    // Use default color. The default colors must be consistent with the ones
+    // used to generate AP. See calls to GetColorStringWithDefault() in
+    // CPVT_GenerateAP::Generate*AP().
+    if (pAnnotDict->GetStringFor("Subtype") == "Highlight") {
+      *R = 255;
+      *G = 255;
+      *B = 0;
+    } else {
+      *R = 0;
+      *G = 0;
+      *B = 0;
+    }
+    return true;
+  }
+  CPVT_Color color = CPVT_Color::ParseColor(*pColor);
+  switch (color.nColorType) {
+    case CPVT_Color::kRGB:
+      *R = color.fColor1 * 255.f;
+      *G = color.fColor2 * 255.f;
+      *B = color.fColor3 * 255.f;
+      break;
+    case CPVT_Color::kGray:
+      *R = 255.f * color.fColor1;
+      *G = 255.f * color.fColor1;
+      *B = 255.f * color.fColor1;
+      break;
+    case CPVT_Color::kCMYK:
+      *R = 255.f * (1 - color.fColor1) * (1 - color.fColor4);
+      *G = 255.f * (1 - color.fColor2) * (1 - color.fColor4);
+      *B = 255.f * (1 - color.fColor3) * (1 - color.fColor4);
+      break;
+    case CPVT_Color::kTransparent:
+      *R = 0;
+      *G = 0;
+      *B = 0;
+      break;
+  }
+  return true;
+}
+
+DLLEXPORT FPDF_BOOL STDCALL
+FPDFAnnot_HasAttachmentPoints(FPDF_ANNOTATION annot) {
+  if (!annot)
+    return false;
+  FPDF_ANNOTATION_SUBTYPE subtype = FPDFAnnot_GetSubtype(annot);
+  return subtype == FPDF_ANNOT_LINK || subtype == FPDF_ANNOT_HIGHLIGHT ||
+         subtype == FPDF_ANNOT_UNDERLINE || subtype == FPDF_ANNOT_SQUIGGLY ||
+         subtype == FPDF_ANNOT_STRIKEOUT;
+}
+
+DLLEXPORT FPDF_BOOL STDCALL
+FPDFAnnot_GetAttachmentPoints(FPDF_ANNOTATION annot,
+                              FS_QUADPOINTSF* quadPoints) {
+  if (!annot || !quadPoints || !FPDFAnnot_HasAttachmentPoints(annot))
+    return false;
+  CPDF_Array* pArray =
+      CPDFDictionaryFromFPDFAnnotation(annot)->GetArrayFor("QuadPoints");
+  if (!pArray)
+    return false;
+  quadPoints->x1 = pArray->GetNumberAt(0);
+  quadPoints->y1 = pArray->GetNumberAt(1);
+  quadPoints->x2 = pArray->GetNumberAt(2);
+  quadPoints->y2 = pArray->GetNumberAt(3);
+  quadPoints->x3 = pArray->GetNumberAt(4);
+  quadPoints->y3 = pArray->GetNumberAt(5);
+  quadPoints->x4 = pArray->GetNumberAt(6);
+  quadPoints->y4 = pArray->GetNumberAt(7);
+  return true;
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFAnnot_GetRect(FPDF_ANNOTATION annot,
+                                              FS_RECTF* rect) {
+  CPDF_Dictionary* pAnnotDict = CPDFDictionaryFromFPDFAnnotation(annot);
+  if (!rect || !pAnnotDict)
+    return false;
+  CFX_FloatRect rt = pAnnotDict->GetRectFor("Rect");
+  rect->left = rt.left;
+  rect->bottom = rt.bottom;
+  rect->right = rt.right;
+  rect->top = rt.top;
+  return true;
+}
+
+DLLEXPORT unsigned long STDCALL FPDFAnnot_GetText(FPDF_ANNOTATION annot,
+                                                  FPDFANNOT_TEXTTYPE type,
+                                                  char* buffer,
+                                                  unsigned long buflen) {
+  CPDF_Dictionary* pAnnotDict = CPDFDictionaryFromFPDFAnnotation(annot);
+  if (!pAnnotDict)
+    return 0;
+  CFX_ByteString key = type == FPDFANNOT_TEXTTYPE_Author ? "T" : "Contents";
+  CFX_ByteString contents = pAnnotDict->GetUnicodeTextFor(key).UTF16LE_Encode();
+  unsigned long len = contents.GetLength();
+  if (buffer && buflen >= len)
+    memcpy(buffer, contents.c_str(), len);
+  return len;
+}
diff --git a/fpdfsdk/fpdfannot_embeddertest.cpp b/fpdfsdk/fpdfannot_embeddertest.cpp
new file mode 100644
index 0000000000..27a76eecfa
--- /dev/null
+++ b/fpdfsdk/fpdfannot_embeddertest.cpp
@@ -0,0 +1,132 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <vector>
+
+#include "public/fpdf_annot.h"
+#include "public/fpdfview.h"
+#include "testing/embedder_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class FPDFAnnotEmbeddertest : public EmbedderTest {};
+
+TEST_F(FPDFAnnotEmbeddertest, ExtractHighlightLongContent) {
+  // Open a file with one annotation and load its first page.
+  ASSERT_TRUE(OpenDocument("annotation_highlight_long_content.pdf"));
+  FPDF_PAGE page = FPDF_LoadPage(document(), 0);
+  ASSERT_TRUE(page);
+
+  // Check that there is a total of 1 annotation on its first page.
+  EXPECT_EQ(1, FPDFPage_GetAnnotCount(page));
+
+  // Check that the annotation is of type "highlight".
+  FPDF_ANNOTATION annot;
+  ASSERT_TRUE(FPDFPage_GetAnnot(page, 0, &annot));
+  EXPECT_EQ(FPDF_ANNOT_HIGHLIGHT, FPDFAnnot_GetSubtype(annot));
+
+  // Check that the annotation color is yellow.
+  unsigned int R;
+  unsigned int G;
+  unsigned int B;
+  unsigned int A;
+  EXPECT_TRUE(
+      FPDFAnnot_GetColor(annot, FPDFANNOT_COLORTYPE_Color, &R, &G, &B, &A));
+  EXPECT_EQ(255u, R);
+  EXPECT_EQ(255u, G);
+  EXPECT_EQ(0u, B);
+  EXPECT_EQ(255u, A);
+
+  // Check that the author is correct.
+  unsigned long len =
+      FPDFAnnot_GetText(annot, FPDFANNOT_TEXTTYPE_Author, nullptr, 0);
+  std::vector<char> buf(len);
+  EXPECT_EQ(28u, FPDFAnnot_GetText(annot, FPDFANNOT_TEXTTYPE_Author, buf.data(),
+                                   len));
+  EXPECT_STREQ(L"Jae Hyun Park",
+               GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
+                   .c_str());
+
+  // Check that the content is correct.
+  len = FPDFAnnot_GetText(annot, FPDFANNOT_TEXTTYPE_Contents, nullptr, 0);
+  buf.clear();
+  buf.resize(len);
+  EXPECT_EQ(2690u, FPDFAnnot_GetText(annot, FPDFANNOT_TEXTTYPE_Contents,
+                                     buf.data(), len));
+  const wchar_t contents[] =
+      L"This is a note for that highlight annotation. Very long highlight "
+      "annotation. Long long long Long long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long longLong long longLong long longLong long longLong long "
+      "longLong long long. END";
+  EXPECT_STREQ(contents,
+               GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
+                   .c_str());
+
+  // Check that the quadpoints are correct.
+  FS_QUADPOINTSF quadpoints;
+  ASSERT_TRUE(FPDFAnnot_GetAttachmentPoints(annot, &quadpoints));
+  EXPECT_EQ(115.802643f, quadpoints.x1);
+  EXPECT_EQ(718.913940f, quadpoints.y1);
+  EXPECT_EQ(157.211182f, quadpoints.x4);
+  EXPECT_EQ(706.264465f, quadpoints.y4);
+
+  UnloadPage(page);
+}
+
+TEST_F(FPDFAnnotEmbeddertest, ExtractInkMultiple) {
+  // Open a file with three annotations and load its first page.
+  ASSERT_TRUE(OpenDocument("annotation_ink_multiple.pdf"));
+  FPDF_PAGE page = FPDF_LoadPage(document(), 0);
+  ASSERT_TRUE(page);
+
+  // Check that there is a total of 3 annotation on its first page.
+  EXPECT_EQ(3, FPDFPage_GetAnnotCount(page));
+
+  // Check that the third annotation of type "ink".
+  FPDF_ANNOTATION annot;
+  ASSERT_TRUE(FPDFPage_GetAnnot(page, 2, &annot));
+  EXPECT_EQ(FPDF_ANNOT_INK, FPDFAnnot_GetSubtype(annot));
+
+  // Check that the annotation color is blue with opacity.
+  unsigned int R;
+  unsigned int G;
+  unsigned int B;
+  unsigned int A;
+  EXPECT_TRUE(
+      FPDFAnnot_GetColor(annot, FPDFANNOT_COLORTYPE_Color, &R, &G, &B, &A));
+  EXPECT_EQ(0u, R);
+  EXPECT_EQ(0u, G);
+  EXPECT_EQ(255u, B);
+  EXPECT_EQ(76u, A);
+
+  // Check that there is no content.
+  EXPECT_EQ(2u,
+            FPDFAnnot_GetText(annot, FPDFANNOT_TEXTTYPE_Contents, nullptr, 0));
+
+  // Check that the rectange coordinates are correct.
+  // Note that upon rendering, the rectangle coordinates will be adjusted.
+  FS_RECTF rect;
+  ASSERT_TRUE(FPDFAnnot_GetRect(annot, &rect));
+  EXPECT_EQ(351.820404f, rect.left);
+  EXPECT_EQ(583.830688f, rect.bottom);
+  EXPECT_EQ(475.336090f, rect.right);
+  EXPECT_EQ(681.535034f, rect.top);
+
+  UnloadPage(page);
+}
diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp
index f20e8ab9f4..0dcb25aaca 100644
--- a/fpdfsdk/fpdfview.cpp
+++ b/fpdfsdk/fpdfview.cpp
@@ -17,6 +17,7 @@
 #include "core/fpdfapi/page/cpdf_page.h"
 #include "core/fpdfapi/page/cpdf_pageobject.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
+#include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
 #include "core/fpdfapi/render/cpdf_progressiverenderer.h"
@@ -303,6 +304,14 @@ CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page) {
 #endif  // PDF_ENABLE_XFA
 }
 
+FPDF_ANNOTATION FPDFAnnotationFromCPDFDictionary(CPDF_Dictionary* pDict) {
+  return static_cast<FPDF_ANNOTATION>(pDict);
+}
+
+CPDF_Dictionary* CPDFDictionaryFromFPDFAnnotation(FPDF_ANNOTATION annot) {
+  return static_cast<CPDF_Dictionary*>(annot);
+}
+
 CFX_DIBitmap* CFXBitmapFromFPDFBitmap(FPDF_BITMAP bitmap) {
   return static_cast<CFX_DIBitmap*>(bitmap);
 }
diff --git a/fpdfsdk/fpdfview_c_api_test.c b/fpdfsdk/fpdfview_c_api_test.c
index 37f1d91de2..5a65fc4111 100644
--- a/fpdfsdk/fpdfview_c_api_test.c
+++ b/fpdfsdk/fpdfview_c_api_test.c
@@ -9,6 +9,7 @@
 
 #include "fpdfsdk/fpdfview_c_api_test.h"
 
+#include "public/fpdf_annot.h"
 #include "public/fpdf_dataavail.h"
 #include "public/fpdf_doc.h"
 #include "public/fpdf_edit.h"
@@ -33,6 +34,15 @@ fnptr g_c_api_test_fnptr = NULL;  // Extern, so can't know it doesn't change.
 
 // Function to call from gtest harness to ensure linker resolution.
 int CheckPDFiumCApi() {
+    //fpdf_annot.h
+    CHK(FPDFPage_GetAnnotCount);
+    CHK(FPDFPage_GetAnnot);
+    CHK(FPDFAnnot_GetSubtype);
+    CHK(FPDFAnnot_GetColor);
+    CHK(FPDFAnnot_GetAttachmentPoints);
+    CHK(FPDFAnnot_GetRect);
+    CHK(FPDFAnnot_GetText);
+
     // fpdf_dataavail.h
     CHK(FPDFAvail_Create);
     CHK(FPDFAvail_Destroy);
diff --git a/fpdfsdk/fsdk_define.h b/fpdfsdk/fsdk_define.h
index e14cc19ea1..e49977976b 100644
--- a/fpdfsdk/fsdk_define.h
+++ b/fpdfsdk/fsdk_define.h
@@ -61,6 +61,8 @@ FPDF_DOCUMENT FPDFDocumentFromCPDFDocument(CPDF_Document* doc);
 
 CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page);
 
+FPDF_ANNOTATION FPDFAnnotationFromCPDFDictionary(CPDF_Dictionary* pDict);
+CPDF_Dictionary* CPDFDictionaryFromFPDFAnnotation(FPDF_ANNOTATION annot);
 CFX_DIBitmap* CFXBitmapFromFPDFBitmap(FPDF_BITMAP bitmap);
 
 void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable);