winapi - Getting user input from Win32 C++. WPARAM casted as int? -

-

I am working on a pre-existing codebase and I follow any 1-2 digits of user type When entering the code at any time by entering the key and passing that number to a function. At present, user input is controlled in such a way: 

  LRESULT callback WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {int wmId, wmEvent; Switch (Message) {Case WM_KEYDOWN: Engine :: GetInstance () - & gt; GetInput () - & gt; GetKeyboard () - & gt; Setcased (static_cast & lt; int & gt; (wParam)); break; // Content

Now, I do not know about some things,

  • a) Why pass cubes as an integer Will instead be a character?

  • b) In this case what will be the "F1" sent

  • c) How can I do this? Use it to read in the 1-2 digit number and only when the entry is entered?

    • a) The value sent here is a virtual-key code, required Not a letter

    b) See the list of virtual key codes (given in a comment) F1 will be represented by VK_F1 (0x70).

    c) When a number is pressed, add it to a string, which includes the last digit press. When any other key is pressed, clear the string. When the entry is entered, the string works by value.

    Edit : This will be a bit complicated in WM_KEYDOWN because you will need to handle both common points and numpad keys instead of WM_CHAR message will be easy to handle, which receives the character code in wParam.


Comments

Post a Comment

Popular posts from this blog

c# - How to capture HTTP packet with SharpPcap -

-
I would like to capture all incoming HTTP packets on my machine. To do this, I am using SharpPcap which is a WinPcap The cover is. SharpPcap works very well, but it captures TCP packets and what it wants to do for me is a very low level. Does anyone know how can I easily get full HTTP requests / reactions from all these TCP packets? Thanks SharpPcap is already able to capture the packet in the same way That's what the virus does (just in the code instead of the GUI). And you can either either parse them directly or you can put them in the drive in the common .pcap file format. The steps to parse the capture are: Open a connection at any time Loop a while Or start capturing using an event callback Parsing the raw packet for the type you want If you are reading .PPP dump files In addition to calling you an offline capture reader is almost the same, there is no need to select an interface, and you can set the majority There is no need to do the modes. All st...
Read more

php - Multiple Select with Explode: only returns the word "Array" -

-
By using Wordpress I have created a multiple selection box so that users can select categories to exclude. When the page is initially loaded, I see my predefined default option. However, when I select a new value and I save ... I only see the word "Array" and have not chosen anything else? & lt; Class = "amultiple" id = "& lt; php echo $ value ['id'] ;? gt;" name = "& gt; php echo $ value ['id'] ;; gt; []" Multiple = "multiple" size = "8" & gt; & Lt ;? Php global option; Foreign currency ($ value as value $) {if (get_settings ($ value ['id']) === FALSE {$$ value ['id'] = $ value ['std']; } And {$$ value ['id'] = get_settings ($ value ['id']); }} $ Ranges = & amp; Amp; Categories ('type = post & orderbiz = name & amp; hide_empty = 1'); If ($ ranges) {$ ex_cat = implode (',', $ tt_cat_exclude); Forex Currency ($ range a...
Read more

php - jQuery AJAX Post not working -

-
I do not understand why this script does not work. It has something to do within AJAX PostScript / Function. Right now, when I submit my form, it runs php code on the same page. What it should do, send the values ​​of the form for Project_Azax.fp, then there will be a refund of success on the page which is correct or false. $ (document) .ready (function () {$ ('div # didIt'). Hide (); $ ('form [name = adminForm]'). Submit (function () ($ {'.post' ('/ project_ajax.php', {action: $ ('[name = action]') Val (), pId: $ ('[name = pId]'). Val (), name ('[Name = name]'. Val (), url: $ ('[url = url]'). Val (), summary: ('[summary = summary]'). Val ()}, Function (data) {if (data.success) {$ ('div # didIt') .Sliddown ('slow');} and {warning ('unsuccessful SA!');}}, 'Jason'); return false ;});}); What is the code for project_ajax.php below ... if ($ _ POST ['action'] == ...
Read more