I have a DB component which DataLink.UpdateRecord is called when it receives CM_EXIT message. This message is sent when it loses focus. When I click post button, it doesn't lose focus and value is not written to datasource. How can I reach an effect of component losing focus without switching it to other one? ...
One casualty of my brief dalliance with Delphi 2010 and subsequent return to using Delphi 7 was my acceptance of the wheel-scrolling behaviour in Delphi 7 with CodeRush installed. The scroll wheel scrolls horizontally in that environment, which I've accepted for all these many years. But it sure was nice to have vertical scrolling whil...
I need to use a class instead of record for VirtualStringTree node. Should I declare it standard (but in this case - tricky) way like that: PNode = ^TNode; TNode = record obj: TMyObject; end; //.. var fNd: PNode; begin fNd:= vstTree.getNodeData(vstTree.AddChild(nil)); fNd.obj:= TMyObject.Create; //.. or should I use directly TMyOb...
i want to embedded a file (any kind of type) to my exe application and be able to extract in the remote to use it, i know how do it by embedded into resource,but i don't want to place the files in the app directory, i want to store all files (like .rec) into my exe, in c# it is possible to store as text file and then read it by FileStr...
Hi, I did a checkout of d-gecko SDK from sf.net ( http://sourceforge.net/projects/d-gecko/ ). I wanted to try it with Gecko (XULRunner) 1.9, however when running simple application each time I get error in stdcall function, pointing to WebBrowser.Paint line ... My question is - did anyone succeeded to run GeckoSDK Delphi app in XULRunne...
I written an asm function in Delphi 7 but it transforms my code to something else: function f(x: Cardinal): Cardinal; register; label err; asm not eax mov edx,eax shr edx, 1 and eax, edx bsf ecx, eax jz err mov eax, 1 shl eax, cl mov edx, eax add edx, edx or eax, edx ret err: xor eax, eax end; // compiled ...
Working in Delphi7 just now, I noticed that not only a VarIsEmpty function exists, but also a VarIsEmptyParam. Since the help of Delphi does not give much explanation: VarIsEmptyParam returns true if the given variant represents an unassigned optional parameter. If the variant contains any other value, the function result is...
Embarcadero just released a whole bunch of neat looking icons that I'd like to use to make my Delphi 7 and 2009 apps look fancier. Is there a setting (or hack) in those IDEs that lets me change the default exe icon? ...
Is there a ListView (ListBox) or similar component that allows me to easily drop another component in a specific column. (Multiple columns)? Like a checkbox, button or drop down list or all the above. (It would be nice to be able to sort via the header also) If not does anyone know of a resource on how to custom draw something like thi...
I have a TDateTime variable which is assigned a value at runtime of 40510.416667. When I extract the time to a TTime type variable using the Frac function, it sets it to 0.41666666666. Why has it changed the precision of the value and is there a workround to retain the precision from the original value ie. to set it to 0.416667. ...
I use TwebBrowser in a D7 app. The question is: When I upgrade my IE this component will use the new IE to render the pages? ...
How can I change the colour of a line in a TChart in Delphi at run time? For example, how would I change the colour of: Chart1.Series[a]. ...
I passed ref of interface from Visio Add-ins to MyCOMServer (http://stackoverflow.com/questions/2455183/interface-marshalling-in-delphi).I have to pass interface as pointer in internals method of MyCOMServer. I try to pass interface to internal method as pointer of interface, but after back cast when i try call method of interface I ge...
Have 6 forms, 1 Base and 5 inherited.The Base has the following snippet: procedure TMechan.Open1Click(Sender: TObject); begin if OpenDialog1.Execute then Form1.Memo1.Lines.LoadFromFile(OpenDialog1.FileName ); CopyCylMemoToRecord; ShowMechanicalValues; end; Since this snippet is in the Base it's also inherited by 5 others. P...
If i want to set a colour property to something thats non-standard (i.e. not something like clBlack or clRed) how can i do this? Can i set something like hexadecimal colours? ...
In my Delphi Project i want to have a 'Settings' button that when clicked, opens a second form (i think this is the correct term, i essentially want a new window to open) for settings. When the user has finished changing the settings on this new form, i want the form to close on a button click. The settings the user types in will also ...
Sorry to ask something so basic, but I just can't find it. I found some example code which seems to do exactly what I want, but it doesn't include a uses clause. procedure FilterProps(Sender: TObject; Prop: TProperty; var Result: boolean); undeclared indentifier: TProperty ...
Wich is the best way to read and parse an Fixed Width Text File using Delphi? exist any component for that? thanks in advance. ...
Hi, I am new to Writing Windows Service apps and having problems. Written in Delphi, I have written a normal windows application to check and debug the major parts of the code and now have to convert it to an NT Service. My code has to launch a windows application which I do using the following code. function Run_Program : boolean; ...
Is Delphi have any ability to write script of IDE actions? I would like On open delphi project execute script opening some unit. How I can do this. ...