delphi-6

问题 I have the following issue: we're building a rather large application (win32, Delphi 6 Enterprise). In several part of the application, modal windows are used, usually containing the detail of the selection of the main window. We included a modification of the handling of the WM_SYSCOMMAND messages so that, if the window is modal, then a SW_SHOWMINNOACTIVE message will be sent to the application's main window. This causes the whole application to be minimized instead of just the modal form.

问题 I have the following issue: we're building a rather large application (win32, Delphi 6 Enterprise). In several part of the application, modal windows are used, usually containing the detail of the selection of the main window. We included a modification of the handling of the WM_SYSCOMMAND messages so that, if the window is modal, then a SW_SHOWMINNOACTIVE message will be sent to the application's main window. This causes the whole application to be minimized instead of just the modal form.

问题 This question already has answers here : Binary to Base64 (Delphi) (2 answers) Closed 6 years ago . I need to encode a pdf document to base64 in Delphi6. Can anyone help me? 回答1: You can use the EncdDecd unit that is supplied with Delphi. The function you need is EncodeStream . You simply need to create two streams, one for input and one for output. If you are working with files then you should create TFileStream instances. Once you have your two file streams created, all you need is:

问题 To get a particular DOM node embedded in the current web document from a TChromium instance, using its ID, you use ICefDomDocument.getElementById(). But how do you find elements by the NAME attribute? Javascript has the document.getElementsByName() method and TWebBrowser (that wraps IE) has a similar call, but I can't figure out how to do this with TChromium. I need to find some DOM elements that have NAME attributes but no ID attributes. I searched the ceflib unit and did not see anything

问题 Calling idTelnet.Connect normally connects to the remote device instantaneously. But, if the remote device does not respond, then the call to idTelnet.Connect does not return. It waits for a response from the remote device. This hangs the entire application. How can I set a timeout so that idTelnet.Connect returns within nn ms regardless of whether a connection has been established or not? 回答1: if the remote device does not respond, then the call to idTelnet.Connect does not return. Yes, it

问题 As per my previous question (Delphi 6 support for toolbar and menu icons with alpha channel transparency), we are updating a legacy application developed in Delphi 6 to support Windows Visual Themes by including a Manifest. This has worked well and we have the majority of controls adopting the Windows visual theme correctly. However, we do have a problem with TDateTimePicker behaving in a slightly odd manner. We have the form colour set to white (RGB 255/255/255) and the input box for

问题 I am currently in the process of converting a project (that uses encryption) from Delphi 6 to XE. This project uses the old Delphi Encryption Compendium which does not work in XE. So I figured that I would swap from that component set to LockBox. There are two versions of LockBox - 2 and 3. I have no problems with using the LockBox2 in Delphi 6. I though that I would use LockBox3 in XE, but the problem that I have is that I cannot get the same results when used with ExFile demo program (from

问题 I have a commercial app that is developed with Delphi 6. Ive been developing under windows xp 32 bit, but am about to get a new development machine with Windows 7 64 bit. Will Delphi 6 install and work in the new environment ? The developed app also uses the BDE, on vista I couldnt get it to work at all, which meant my customers had to remain on windows xp. I dont want this to be the case for windows 7. Does the BDE have any problems working with windows 7 ? (or is it best to use

问题 I've come across some code that's throwing an exception (EIntfCasterror Cast not supported) when it passes nil to a constructor expecting a TComponent, like so: obj := SomeClass.Create(nil); The unit this is in does not contain a form and even TForm requires a TComponent be passed to it when you call its constructor. What should I pass in place of nil if anything exists or is there a way to get it to accept nil. Thank you. Also, I don't have the source code which calls the method this is in,

问题 I want to show popup button or fancy message (with coloured background, etc) just under right-bottom corner of particular cell of the current row. For now I only figured how to get grid coordinates: x = DBGrid.DataSource.DataSet.RecNo y = DBGrid.Columns[index] There is also TCustomGrid.CellRect, which would do what I want, but it's protected and I don't want to inherit and create another component class. One crazy workaround I can think of is to save TRect-s in onDrawColumnCell event to some