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PHP WinBinder: Alternative control 4: Difference between revisions
PHP WinBinder: Alternative control 4 (view source)
Revision as of 18:49, 2 February 2010
, 2 February 2010Proofreading and grammatical changes; some minor reformatting
(New page: {{Nav PHP WinBinder}} '''''Alternative control part 4''''' WinBinder has a few limitations most of which can be worked around. One limitation, there is no direct way to detect that an app...) |
(Proofreading and grammatical changes; some minor reformatting) |
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'''''Alternative control part 4''''' | '''''Alternative control part 4''''' | ||
WinBinder has a few limitations most of which can be worked around. One limitation | WinBinder has a few limitations, most of which can be worked around. One limitation is that there is no direct way to detect that an application has been restored from the tray menu. | ||
this detection is required for our application. A server's status may have change while our application is minimised to the tray menu. For example a server, may be closed from Apanel and when our application is restored, it requires the buttons and indicators to be updated. | |||
A crude method of perfuming this is to use a refresh button | A crude method of perfuming this is to use a refresh button, but when should a user press this button? This page shows how to detect when the application window regains focus. This allows the refresh button to be replaced with a more useful button. | ||
=== Preliminary === | === Preliminary === | ||
I made copies of test_7.phpw and test_7.bat renamed them to test_8.phpw and test_8.bat respectively. | I made copies of test_7.phpw and test_7.bat and renamed them to test_8.phpw and test_8.bat respectively. | ||
The batch file test_8.bat was edited to run test_8.phpw. | |||
'''''File test_8.phpw'':''' | '''''File test_8.phpw'':''' | ||
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global $focus_old; | global $focus_old; | ||
</pre> | </pre> | ||
== Timer == | == Timer == | ||
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|-valign="top" | |-valign="top" | ||
| | | | ||
A timer was added | A timer was added to provide a periodic tick; on each tick it calls the handler function. | ||
The handler code checks if it is a timer event and calls our main_timer()function. | |||
When starting or stopping the servers, this function updates a progress indicator and server status. | |||
When starting or stopping the servers this function updates a progress indicator and server status. | |||
The handler code is as shown on the right. | |||
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|-valign="top" | |-valign="top" | ||
| | | | ||
This periodic tick provides an ideal solution for checking a | This periodic tick provides an ideal solution for checking a control's focus. | ||
Function '''wb_get_focus()''' returns a handle to the window or control that has the keyboard focus. | Function '''wb_get_focus()''' returns a handle to the window or control that has the keyboard focus. | ||
Function '''wb_get_text(handle)''' returns the text from a window, control, or control item. If it’s a window returns its caption (UniController) text. | Function '''wb_get_text(handle)''' returns the text from a window, control, or control item. If it’s a window, it returns its caption (UniController) text. | ||
Variable '''$txt''' holds some text of a control currently in focus. | Variable '''$txt''' holds some text of a control currently in focus. | ||
'''$txt != $focus_old''' a new control is in focus. Is it our window | if '''$txt != $focus_old''', a new control is in focus. Is it our window? | ||
If it is call function '''main_init()''' | If it is, call function '''main_init()''' | ||
Save the current focused control text in '''$focus_old''' | Save the current focused control text in '''$focus_old'''. | ||
| | | | ||
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</pre> | </pre> | ||
|} | |} | ||
Function main_init() is called only when the new focus is that of our window application. If the focus of a control has not changed there is nothing to do. | Function main_init() is called only when the new focus is that of our window application. If the focus of a control has not changed, there is nothing to do. | ||
For testing add a line just below main_init() as shown below: | For testing, add a line just below main_init() as shown below: | ||
<pre> | <pre> | ||
main_init(); //Yes: Update button and indicators | main_init(); //Yes: Update button and indicators | ||
| Line 95: | Line 90: | ||
</pre> | </pre> | ||
=== Test === | === Test === | ||
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To see this functionality in action run '''test_8.bat''' | To see this functionality in action run '''test_8.bat''' | ||
Expected results | Expected results: | ||
* When the application starts, an alert pop-up is produced. | * When the application starts, an alert pop-up is produced. | ||
* Minimise and restore application, an alert pop-up is produced. | * Minimise and restore application, an alert pop-up is produced. | ||
* Click outside and then inside the application, an alert pop-up is produced. | * Click outside and then inside the application, an alert pop-up is produced. | ||
* From the drop down menu “Passwords” select “Set MySQL password”<br /> close the pop-up windows and click on the application, an alert pop-up is produced. | * From the drop down menu “Passwords”, select “Set MySQL password”<br /> close the pop-up windows and click on the application, an alert pop-up is produced. | ||
| | | | ||
[[Image:WinBinder_final.gif]] | [[Image:WinBinder_final.gif]] | ||
|} | |} | ||
'''''[[#top | Top]]''''' | '''''[[#top | Top]]''''' | ||
== Final == | == Final == | ||
The above completes this tutorial I was going to leave it there and let you fill in the detail. | The above completes this tutorial. I was going to leave it there and let you fill in the detail. | ||
However I thought better of it and decided that a working reference would be better, allowing you to change it as required. | |||
However thought better of it and decided a working reference would be better allowing you to change it as required. | |||
I made copies of test_7b.phpw, test_8.phpw and test_8.bat renamed them test_9b.phpw, test_9.phpw and test_9_final.bat respectively. | I made copies of test_7b.phpw, test_8.phpw and test_8.bat and renamed them test_9b.phpw, test_9.phpw and test_9_final.bat respectively. | ||
'''''Batch file'':''' test_9_final.bat was modified to have the following content: | '''''Batch file'':''' test_9_final.bat was modified to have the following content: | ||
| Line 129: | Line 122: | ||
The batch file was then converted to an executable using [[PHP WinBinder: Project#Create an EXE file | Bat_To_Exe_Converter.exe]]. | The batch file was then converted to an executable using [[PHP WinBinder: Project#Create an EXE file | Bat_To_Exe_Converter.exe]]. | ||
'''''Note'':''' These two files (test_9_final.bat and test_9_final.exe) are included in folder UniServer\plugins\winbinder \'''alt_con_1''' | '''''Note'':''' These two files (test_9_final.bat and test_9_final.exe) are included in folder UniServer\plugins\winbinder \'''alt_con_1'''. Copy them to folder UniServer and run. | ||
=== New window application === | === New window application === | ||
Script test_9b.phpw was converted into a real windows application changes the following server parameters: | Script test_9b.phpw was converted into a real windows application and changes the following server parameters: | ||
* Appache listen port | * Appache listen port | ||
* Apache ssl port | * Apache ssl port | ||
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That essentially concludes this tutorial. | That essentially concludes this tutorial. | ||
If the plugin is going to be used only for controlling the server it’s probably worth making a few minor modification explained on the [[PHP WinBinder: Overlay | '''next page''']]. | If the plugin is going to be used only for controlling the server. it’s probably worth making a few minor modification explained on the [[PHP WinBinder: Overlay | '''next page''']]. | ||
'''''[[#top | Top]]''''' | '''''[[#top | Top]]''''' | ||