TdxComponentPrinter.EnumPagesAsImages(Integer[],TGraphicClass,Boolean,TdxEnumPagesAsImagesProc,Pointer,Pointer,Pointer,TBasedxReportLink) Method
Converts report pages to graphic images.
Declaration
procedure EnumPagesAsImages(const APageIndexes: array of Integer; AGraphicClass: TGraphicClass; ADrawBackground: Boolean; ACallBackProc: TdxEnumPagesAsImagesProc; ACallBackData: Pointer; AProgressData: Pointer; APrepareData: Pointer; AReportLink: TBasedxReportLink = nil);
Parameters
Name | Type |
---|---|
APageIndexes | Integer |
AGraphicClass | TGraphicClass |
ADrawBackground | Boolean |
ACallBackProc | TdxEnumPagesAsImagesProc |
ACallBackData | Pointer |
AProgressData | Pointer |
APrepareData | Pointer |
AReportLink | TBasedxReportLink |
Remarks
The EnumPagesAsImages method is called within the SavePagesAsImagesToDisk method to obtain report pages for the report link specified by the AReportLink parameter in graphic representation.
The APageIndexes parameter specifies absolute indexes of report pages used in specific events.
The AGraphicClass parameter specifies the image type.
Set the ADrawBackground parameter to True to draw the original background within an image.
The ACallBackData, AProgressData and APrepareData parameters determine pointers to arbitrary data which is used in the TdxEnumPagesAsImagesProc procedure, as well as in the OnExportProgress and OnExportPrepareGraphic events.
The TdxEnumPagesAsImagesProc procedure includes the following parameters:
Parameter | Description |
---|---|
AComponentPrinter | Determines the component printer which sends data. |
AReportLink | Determines the report link whose report is being converted. |
AIndex | Determines the zero-based index of the exported report page among other pages. |
APageIndex | Determines the absolute index of the current page within a report, passed via the APageIndexes parameter of the EnumPagesAsImages method. |
AGraphic | Specifies the image created for a specific page. |
AData | Contains the pointer to additional arbitrary data which is determined by the ACallBackData parameter of the EnumPagesAsImages method. |
AContinue | Set this parameter to True to continue converting report pages to graphic images or to False, to break all operations. |