Components for Developers
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General document methods
Abort
Aborted
AddColorTransformationRule
AddImageFromBitmapHandle
AddImageFromBuffer
AddImageFromFile
AddImageFromFilename
AddImageFromMemory
AddImageWithColorMask
AddImageWithMask
AddTTFFontFromFile
AddTTFFontFromFile2
AddType1FontFromFile
AutoCreateURL
AutoLaunch
BeginDoc
BinaryImage
Compression
CreateWaterMark
CurrentWaterMarkIndex
DocumentInfo_Author
DocumentInfo_CreationDate
DocumentInfo_Creator
DocumentInfo_Keywords
DocumentInfo_Producer
DocumentInfo_Subject
DocumentInfo_Title
EndDoc
FileName
FlipImage
FontEmbedStyle
GenerateInMemoryFile
GetCurrentPageIndex
GetImageCount
GetImageHeight
GetImageResolution
GetImageWidth
GetUsedDC
GetUsedDCResolution
GlyphsToUnicodeStr
HDC
InitialZoom
InitialZoom2
JPEGQuality
LastError
LoadICCProfile
LogActionsAndErrors
LogTextOperation
MakeImageGrayScale
MakeImageNegative
MemoryFileSize
MetafileImagesCompressionType
MetafileImagesJpegCompression
NewPage
NonEmbeddedFonts
NonEmbeddedFonts_Add
NotEmbedAnyFonts
OnePass
OutputByteStream
OwnerPassword
PageCount
PageHeight
PageLayout
PageMode
PageNumber
PageWidth
PlaceImageToCurrentPage
PlayEMF
PrinterForVirtualDC
Printing
ProducePDFA
ProtectionEnabled
ProtectionKeyLength
ProtectionOptions_coAssembly
ProtectionOptions_coCopyInformation
ProtectionOptions_coExtractInfo
ProtectionOptions_coFillAnnotation
ProtectionOptions_coModifyAnnotation
ProtectionOptions_coModifyStructure
ProtectionOptions_coPrint
ProtectionOptions_coPrintHigh
Resolution
SetCurrentPage
SetPDFAOutputIntent
SetPDFXOutputIntent
StartEngine
SwitchedToWatermark
TransformColors
UseCurrentDocumentResolutionForNextPages
UserPassword
UseScreenDC
Version
ViewerPreferences_vpCenterWindow
ViewerPreferences_vpFitWindow
ViewerPreferences_vpHideMenuBar
ViewerPreferences_vpHideToolBar
ViewerPreferences_vpHideWindowUI
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This property gets a PDF document's device context handle for EMF drawing functions.

Syntax

LONG HDC { get; }
Value
PDF document's device context handle (HDC)

Remarks

The HDC property can be used to get a handle to a device context (HDC) for Windows GDI functions.

Note: This property returns a device context (DC) for the current page. If you change the current page or add a new one, you must call this property again to get the DC for that new page.

Equivalent in new interface: IPDFDocument4::GetDC.

Example

Using the HDC Property

Delphi
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{ PDF object is supposed to be created }
PDF.FileName := 'test.pdf';
PDF.UseScreenDC := true;
PDF.BeginDoc;
{ use standard GDI drawing here }
Rectangle(PDF.HDC, 10, 10, 20, 20);
PDF.EndDoc;
C/C++
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// PDF object is supposed to be created
PDF->FileName = "test.pdf";
PDF->UseScreenDC = TRUE;
PDF->BeginDoc();
HDC hdc = (HDC)PDF->HDC;
// use standard GDI drawing here
Rectangle(hdc, 10, 10, 20, 20);
PDF->EndDoc();
C#
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// PDF object is supposed to be created
PDF.FileName = "test.pdf";
PDF.UseScreenDC = true;
PDF.BeginDoc();
Graphics gr = Graphics.FromHdc((IntPtr)PDF.HDC);
// use standard GDI+ drawing here
gr.DrawRectangle(Pens.Black, 10, 10, 10, 10);
gr.Dispose();
PDF.EndDoc();
Visual Basic
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' PDF object is supposed to be created
PDF.FileName = "test.pdf"
PDF.UseScreenDC = True
PDF.BeginDoc
// use standard GDI drawing here
Rectangle PDF.HDC, 10, 10, 20, 20
PDF.EndDoc

See Also

PDF Library Download Features Manual Tutorials FAQ Pricing HTML2PDF-X Pilot History In the Lab

 

 

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