How to capture a sequence of key presses and then fire an event in Qt? -

-

i know how fire event on key press in qt. need handle sequence. fire event when user presses ctrlaltt.

how can capture sequence? tell me how can detect keys pressed.

create qaction, add required key sequence setshortcut(const qkeysequence& shortcut). associate qaction calling qwidget::addaction(qaction* action), , can create appropriate signal/slot connections between qaction , qwidget.


Comments

Post a Comment

Popular posts from this blog

php - Array to string conversion smarty template -

-
hello have array string conversion erro code: index.php: code: $hoarr = array(1,2,3); foreach ($hoarr $hid) { $mysqli = mysqli_connect("localhost", "root", "", "zabbixtest"); if (!$mysqli) { die("connection failed: " . mysqli_connect_error()); } $sql = "select errors_from hosts hostid = '$hid'"; $re = mysqli_query($mysqli, $sql); while ($row = mysqli_fetch_assoc($re)) { $query_times[] = $row['errors_from']; } mysqli_free_result($re); mysqli_close($mysqli); } $smarty->assign('query_times',$query_times); and index.tpl: code: <p>{$query_times}</p> i have no idea whats wrong it.. you try assign array $smarty->assign can assign string. use instead: $query_string = implode ( "," , $query_times ); $smarty->assign('query_times',$query_string);
Read more

Winapi c++: DialogBox hangs when breaking a loop -

-
i've created s simple w32 application cicle through 2 applications(hard coded window classes atm). when call start button (idc_start) works fine, when change focus hwnd application hangs cannot closed. need simple , clean method stop loop, start when calling idc_start. apreciated! #include <stdio.h> #include <stdlib.h> #include <conio.h> #include <windows.h> #include <resource.h> #include <iostream> using namespace std; bool callback dlgproc(hwnd hwnd, uint message, wparam wparam, lparam lparam) { hwnd hwnd1,hwnd2; hwnd1 = findwindow("notepad++",0); hwnd2 = findwindow("notepad",0); bool bdone; switch(message) { case wm_initdialog: // set dialog box, , initialise default values { setdlgitemint(hwnd, idc_number, 5, false); hicon hicon, hiconsm; hicon = (hicon)loadimage(null, "e32.ico", image_icon, 32, 32, lr_loadfromfile); if(hicon) se...
Read more

vb.net - Font adding using PDFsharp -

-
i using pdfsharp add text pdf. when use below code add following text these fonts facing problem. after pdf created using pdfsharp , when opened in adobe reader getting message "cannot find or create font 'windings'. characters may not display or print correctly." opens the source pdf trying modify has fonts helvetica , windings(embedded) this part of code adds text pdf dim font xfont = new xfont("verdana", 20, xfontstyle.regular) gfx.drawstring("hello, world!", font, xbrushes.black, new xrect(0, 0, page.width, page.height), xstringformats.center) font = new xfont("wingdings", 20, xfontstyle.regular) gfx.drawstring("llll", font, xbrushes.black, new xrect(25, 15, page.width, page.height), xstringformats.center) font = new xfont("helvetica", 20, xfontstyle.regular) gfx.drawstring("abcd", font, xbrushes.black, new xrect(50, 25, page.width, page.height), xstringformats.center) after using code text ge...
Read more