如何查看pdf viewer是否打开了pdf文件? [英] How to check pdf viewer opened pdf file or not ?
问题描述
Hai
在我的Windows应用程序中,我将使用PDF-XChnage Viewer ActiveX Control,我将在下面调用
调用 PDFxDoc.SetDevInfo( XXXX -XXXX-XXXX-XXXX-XXXX-XXXX, XXXX $ XXXX $ XXXXXXX_XXXXXXX#)
PDFxDoc.OpenDocument(System.Windows.Forms.Application.StartupPath& \ Temp \ + fname)
它也会打开pdf文件,但是我需要检查PDFXDoc控件是否有打开文件?
如果是pdf控件打开文档我将使用以下代码关闭
PDFxDoc.CloseDocument( 0 )
但即使文件没有打开,我也会尝试clo se文件使用PDFxDoc.CloseDocument(0),它会显示错误。
所以我需要检查第一个文件是否打开?所以请告诉我在关闭前如何检查pdf控件是否有文档。
注意:需要办理入住手续是否有条件
< span class =code-keyword>如果(PDFxDoc)那么 ' 这里需要检查pdf控件是否有文件?如何查看?
PDFxDoc.CloseDocument( 0 )' 此行关闭文档
否则
EndIF
请尽快回复
问候
Aravind
XXXX
XXXXXXX_XXXXXXX# )
PDFxDoc.OpenDocument(System.Windows.Forms.Application.StartupPath& \Temp \ + fname)
它将打开pdf文件另外,但是我需要检查PDFXDoc控件是否有打开文件?
如果是pdf控件打开文档我将使用以下代码关闭
PDFxDoc.CloseDocument( 0 )
但即使文档未打开,我也会尝试使用PDFxDoc.CloseDocument(0)关闭文档,它会显示错误。
所以我需要检查第一个文件是否开放?所以请告诉我在关闭前如何检查pdf控件是否有文档。
注意:需要办理入住手续是否有条件
< span class =code-keyword>如果(PDFxDoc)那么 ' 这里需要检查pdf控件是否有文件?如何查看?
PDFxDoc.CloseDocument( 0 )' 此行关闭文档
否则
EndIF
请尽快回复
问候
Aravind
这似乎是公司的一个问题写了ActiveX ...
http://www.tracker-software.com/product/pdf-xchange- viewer-activex-sdk [ ^ ]
Hai
In my windows application i will use PDF-XChnage Viewer ActiveX Control and i will call like below
Call PDFxDoc.SetDevInfo("XXXX-XXXX-XXXX-XXXX-XXXX-XXXX", "XXXX$XXXX$XXXXXXX_XXXXXXX#")
PDFxDoc.OpenDocument(System.Windows.Forms.Application.StartupPath & "\Temp\" + fname)
and it will open pdf document also,but i need to check PDFXDoc control have open document or not ?
if it is document is opened in pdf control i will close using following code
PDFxDoc.CloseDocument(0)
but even though document is not open then i will try to close document using PDFxDoc.CloseDocument(0) ,it will show error.
So i need to check first document is open or not ? so pls tell me how check pdf control have document or not before going to close.
Note: Need to check in if condition like
If(PDFxDoc) Then 'Here need to check pdf control have document or not ? how to check here ??
PDFxDoc.CloseDocument(0)'This line close document
Else
EndIF
Pls reply asap
Regards
Aravind
XXXX
XXXXXXX_XXXXXXX#") PDFxDoc.OpenDocument(System.Windows.Forms.Application.StartupPath & "\Temp\" + fname)
and it will open pdf document also,but i need to check PDFXDoc control have open document or not ?
if it is document is opened in pdf control i will close using following code
PDFxDoc.CloseDocument(0)
but even though document is not open then i will try to close document using PDFxDoc.CloseDocument(0) ,it will show error.
So i need to check first document is open or not ? so pls tell me how check pdf control have document or not before going to close.
Note: Need to check in if condition like
If(PDFxDoc) Then 'Here need to check pdf control have document or not ? how to check here ?? PDFxDoc.CloseDocument(0)'This line close document Else EndIF
Pls reply asap
Regards
Aravind
It seem like a question to the company wrote the ActiveX...
http://www.tracker-software.com/product/pdf-xchange-viewer-activex-sdk[^]
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