I have a problem with the combo boxes of my application (written in C, built in Visual Studio 2012) running in Windows 8.
If I click on the little black arrow of the combo box the list shows up, but closes immediately when I release the mouse button. So the list is open as long I hold the mouse button down. This means it is not possible to click on (and so select) an item in the list!
It only happens when the combo box is in a modal window. In a not-modal window the combo box works fine, but I need it in a modal window as well.
In Windows 7 the exactly same application works fine. The combo box stays open (after clicking on the arrow and release the mouse button) until I clicked on one of the items in the list.
Running the application in Windows 7 compatibility mode, does not solve the issue on a Windows 8 machine.
When I compare Windows messages after clicking on the arrow to open the list, I see in Windows 8 the message WM_COMMAND with notification code CBN_SELENDOK, after WM_CAPTURECHANGED. This could explain why the list closes, but why do I get this message form Windows?
Or does anyone has another idea how to solve the issue?
Related
We have UWP application which has more than 200 pages and Have Templated Control for TextBox which is extended the TextBox control. We have customized most of the controls, Textbox, ComboBox, RadioButton, etc..
We are getting an issue sometimes as The cursor is not visible, but able to type, also not able to capture the Control GotFocus event as well.
The UWP application is running in KIOSK mode (using shell Launcher V2).
When we got know this issue and trying to remote the system and verifying it, the cursor focus is working good.
The application has lock concept, when the system is idle for an hour, the software (UI UWP application) got locked automatically. The Lock window is a dialog. So far it was occurred 5 to 6 times, most of the time issue happened after we unlock the application.
(We have created custom dialog control (container) which is as part shell page elements and display the pages as dialog, here we were facing one issue, the tab focus is going background when the dialogs are open, since the parent element is in the shell level, so that we are disabling the background controls when any dialog opens and enabling the background controls when the dialogs are closed. We have more suspicious in this area. But sometime it happen when navigate one page another page as well.)
Also we have Global event to launch the keyboard whenever the TextBox control focused, FocusManager.GotFocus+=.. (but we didn't see any exception in this event method)
Any suggestion?
I have downloaded the newest version of Wix Toolset and have made a custom dialog to get the connection string for the database from the user. When I test run the Msi on a Windows 7 machine, the dialog box is there as well as my display text, but the edit control is not showing up. If I click on where it is supposed to be, I get a cursor and if I start typing then the white background on the textbox shows up. Is this a bug?
Almost certainly this is a Z-order problem where another control is overlapping with the control you want. First, ensure your controls don't overlap. Then, order them in the Dialog element such that the highest z-order are last (IIRC).
I had a similar issue where the edit boxes were "invisible" until I clicked on them. After examining the code, I realized that my controls were being "painted over" by my dialog bitmap. I made the bitmap code the first line in the dialog and this fixed the problem as the controls got "painted over" the bitmap.
I have a Visual Basic .Net form (launches after the splash screen tests database connectivity) and it is not focusing above other existing windows on launch.
How do I get it to focus above all existing windows and Windows Explorer windows?
Form.Topmost = true;
See the corresponding MSDN.
A topmost form is a form that overlaps
all the other (non-topmost) forms even
if it is not the active or foreground
form. Topmost forms are always
displayed at the highest point in the
z-order of the windows on the desktop.
You can use this property to create a
form that is always displayed in your
application, such as a Find and
Replace tool window.
Just finishing off an update to an application written in VB.NET that used to run fine under CE.NET 4.2. Deployment platform is now Windows Mobile 6.1.
The application runs in full screen, however whenever a new form is opened, the task bar, i.e. the bar with the start button comes to the fore and then the new form takes over. This is particularly annoying as I have a form that has many sub forms which are 128,128 and still the task bar flashes and obscures part of the user input screen.
Has anyone comes across this? Any known workarounds?
You can use the technique I posted here to disable the task bar.
I assume your application flow is something like:
Form 1 open.
Form 1 close.
Form 2 open.
The problem is that between the Form 1 closing and the Form 2 opening the background window may be partially drawn (e.g. the task bar will draw).
To work around this we normally create a parent window (which is your case is full-screen window) which sits behind the form windows. That way when one is closing and the next is opening it falls back to displaying the parent window which can display anything you like (blank?).
With my Application (vb.net) I am trying to scan Excel files some of which have ActiveX Components.
When running my Application, I am getting a pup-up window in Windows Vista Environment with Office-2007 having button OK and Cancel button to proceed.
But my problem is the scanning is not proceeding even after I keep on pressing the OK button. Now I want to continue with my application while pressing the Cancel button; i.e. just to skip the file. Is it possible to capture the response from the cancel button? (As this is a message box from another application, i.e. either from Vista or Office-2007, I'm not sure).
My main motive is to just ignore the message box to proceed....
Can anyone please help me out there....
Thank you....
The DisplayAlerts property of Microsoft.Interop.Excel.Application may help here.
If set to FALSE then Excel automatically chooses the default option on pop-up boxes.
Whether or not this applies to ActiveX controls I don't know but it may be worth trying.