I have a TStringGrid, that has a TPopupMenu connected.
By clicking one event of the popup menu, I would like to get the calling component. Is that possible?
Background:
It is a bigger project, every form has a "BasicForm" I can inherited from. So I would like to provide a "default popup menu" for grids that have stuff like Copy, Select, and so on in it. In the inherited form I only match the grid (if exists) with that popup and I'm done.
Seems you are looking for the PopupComponent property of TPopupMenu:
Vcl.Menus.TPopupMenu.PopupComponent
Indicates the component that last displayed the popup menu in response
to a right mouse click.
Read PopupComponent to determine which control is currently using the
popup menu. In applications where multiple controls share the same
pop-up menu, use PopupComponent to determine which of them displayed
the menu.
Set PopupComponent to associate a control with the menu before calling
the Popup method programmatically to bring up the pop-up menu.
Related
I assigned a popup menu to the TPageControl because I want to display it when I rightclick a tab.
So that works...
Unfortunately it also shows the popup menu when I right-click within the actual tab sheet.
This I do not want because my ListBox1 in the tab sheet responds to a right-click to execute some code.
So right now it's a mess, the code fires upon rightclick of the listbox but also then displays a popup menu.
How can I nullify this popup menu in the tabsheet or at least within the listbox itself?
ok, Handled := True; was all that was needed in the popup event of the listbox. Thanks Rufo for pointing me in the right direction.
I have a TPageControl that contains five pages and the page shown is alternated setting the ActivePageIndex property in this way:
PageControl1.ActivePageIndex := 4;
the problem is that the page below covered by the page currently shown get click on his buttons while the mouse is pressed on the above page, how can I avoid this behaviour ? How can I avoid the propagation of the click on Pages below the currently shown (that is also the current index)?
The application uses CLX as Graphics library instead of VCL.
Delphi does not do click Propagation.
I would check if the button that gets click are placed on the TabSheet and not on the parent control. Find the button you want in the drop down list of object inspector and press - the selected item will be the parent of the button. Is it a TabSheet?
Or you can add this code as a first line of your button-click-function
ShowMessage(TButton(Sender).Parent.Name);
I have a Delphi 6 application that has a TJvListView control. I have a popup menu tied to that control via the control's PopupMenu property. What I would like to do is show a different popup menu based on which column the user had the mouse over when they right clicked, with the additional option to not show a popup menu at all if the current column does not need one. How can I do this?
Thanks to this detailed sample by Remy Lebeau on in-place editing in a TListView I know what row and column the mouse is over except for one wrinkle. The mouse down event where I determine the current row and column occurs after the popup menu is exited.
I now need to know two things. First, how can I get some event to fire before the popup menu shows after a right mouse click so I can record the current list view row and column and suppress the popup menu if I want to, and second, how I can show a different popup based on the current column. I am hoping to avoid having to write a bunch of mini-forms instead of using the TListView PopupMenu property and supporting code. Is there a simple solution, perhaps some fancy footwork in a sub-class I should create around TJvListView?
You could perform the detection in mousemove instead of mousedown/Click and change the popupmenu depending.
You also could remove any popupmenu and call the wished via p.pupup in mousedown as you desire.
I've got a TMemo with an associated TPopupMenu on a FireMonkey form.
When I rightclick on the memo, I get my own popup menu, but after my popup disappears I still get the default popup (the one that says cut, copy, paste, select all).
How do I disable the default menu, or can I add my own items to the default menu perhaps?
I can't reproduce this behavior. Here's what I tried:
File->New->FireMonkey HD Application
Drop a TMemo and TPopupMenu on the form
Assign PopupMenu to Memo1.PopupMenu in the Object Inspector
Create two menu items in the PopupMenu, and assign them both the same OnClick event (generated in the Object Inspector). I left the default caption of MenuItem1 and MenuItem2 in the Caption of both items.
Wrote a simple MessageDlg that displays TMenuItem(Sender).Caption with a single Ok button in the OnClick handler.
Run the application, right-click Memo1, and choose either menu item
I get a single menu displayed with my two items (MenuItem1 and MenuItem2). Choosing either item displays the appropriate Caption in a message dialog, and clicking Ok in that dialog. There is no default popup menu displayed.
EDIT: Found it for you. This is a bug fixed in Update 3 - see the list of bug fixes in Update 3, and search for 98705, or scroll through until you reach the section on FireMonkey\Components (it's the second or third entry under that section).
I'm using Delphi. I have my popup menu ready, and in a submenu I want to click, but I don't want the popup menu to disappear. I want to click and make it stay.
Easy one, disable the item. < g >
Joke aside, not an easy task.
If you want the popup menu to act like a top-most form (that is you can both interact with the items and with controls on your form without deactivating the menu), forget it, it cannot be done with a standard menu.
But if your requirement is as exactly as stated in your question (click an item, and the menu is not closed - click outside and it is closed), with some work, it would be possible.
Your aim would be to subclass the window that your submenu will reside in to override some message handling. First, derive a new class from 'TPopupList' and override its 'WndProc'. Here is an example doing this.
If you intend to prevent the closing of the menu by selecting root items then in PopupList's WndProc you'd handle WM_ENTERIDLE and get the popup menu's window handle from the message's lParam and subclass the popup menu's window.
If you only intend to prevent the closing of the menu by selecting submenu items, then in PopupList's WndProc you'd watch for WM_INITMENUPOPUP messages where the wParam is "not" the handle of the PopupMenu itself, that would mean a submenu is about to be shown. Only then you'd handle WM_ENTERIDLE and get the window handle that the submenu resides in and subclass that window.
After subclassing the window that the popup menu or the popup submenu resides in, you'd intercept an undocumented 'MN_BUTTONDOWN' ($01ED) message and prevent further handling (not call the original window procedure). Probably you'd also want to prevent closing of the menu with the keyboard; you'd watch for WM_KEYDOWN (Enter) and WM_CHAR (accelerator) messages.
Well, would take some work I guess.
I don't know how can you do that but TAdvStickyPopupMenu component (TMS software) can do this.