There is no corresponding VC_MFC keyboard news-CodePudding

Just learn MFC in accordance with the instruction of the book wrote a program that can automatically refresh the web page

 void CKeyBoardDlgDlg: : OnBtnStart () 
{
//TODO: Add your the control notification handler code here 
Cstrings strBtn; 
Int nInterval=0; 

GetDlgItemText (IDC_EDIT_CAPTION m_StrCaption); 

NInterval=GetDlgItemInt (IDC_EDIT_INTERVAL, FALSE, TRUE); 

If (m_StrCaption=="" | | nInterval==0) {
return; 
} 

M_Start. GetWindowText (strBtn); 

{if (strBtn=="start") 
SetTimer (1, nInterval * 10000, NULL); 
M_Start. SetWindowText (" stop "); 
GetDlgItem (IDC_EDIT_CAPTION) - & gt; The EnableWindow (FALSE); 
GetDlgItem (IDC_EDIT_INTERVAL) - & gt; The EnableWindow (FALSE); 
} 
The else {
KillTimer (1); 
M_Start. SetWindowText (" start "); 
GetDlgItem (IDC_EDIT_CAPTION) - & gt; The EnableWindow (TRUE); 
GetDlgItem (IDC_EDIT_INTERVAL) - & gt; The EnableWindow (TRUE); 
} 
} 
Void CKeyBoardDlgDlg: : OnTimer (UINT nIDEvent) {
HWND HWND=: : FindWindow (NULL, m_StrCaption GetBuffer (0)); 

: : PostMessage (hWnd, WM_KEYDOWN, VK_F5, 1); 
Sleep (50); 
: : PostMessage (hWnd, WM_KEYUP VK_F5, 1); 

CDialog: : OnTimer (nIDEvent); 
}

But no response after the program is run, turn to...

CodePudding user response:

Wish someone would see...

CodePudding user response:

HWND hWnd =: : FindWindow (NULL, m_StrCaption GetBuffer (0));
Debugging to see if the return value is empty

CodePudding user response:

First of all, the if (strBtn=="start") {
SetTimer (1, nInterval * 10000, NULL); There is a nInterval * 1000 not 10000 is 1000 milliseconds, a second is 10000 milliseconds for 10 seconds

CodePudding user response:

reference qq_29522823 reply: 3/f

first if (strBtn=="start") {
SetTimer (1, nInterval * 10000, NULL); There is a nInterval * 1000 not 10000 is 1000 milliseconds, a second 10000 milliseconds is 10 seconds

And check the HWND HWND=: : FindWindow (NULL, m_StrCaption GetBuffer (0)); Handle for null and m_StrCaption. GetBuffer (0) and whether the browser title

CodePudding user response:

Try using Keybd_event function

CodePudding user response:

Less corresponding message map,

CodePudding user response:

refer to 6th floor zhao4zhong1 response:

less corresponding message map,

Miss zhao is ubiquitous

, I run this code, no problem, there is 10000 milliseconds timer time to 1000 and then m_StrCaption. GetBuffer (0) returns a handle to the content and the window title is consistent to obtain

CodePudding user response:

Use keybd_event or SendInput

CodePudding user response:

Post for the first time there are so many bosses to help, thank you teacher

CodePudding user response:

Whether to open the keyboard editing features

CodePudding user response:

refer to the original poster qq_39573785 response:

just learn MFC in accordance with the instruction of the book wrote a program that can automatically refresh the web page

 void CKeyBoardDlgDlg: : OnBtnStart () 
{
//TODO: Add your the control notification handler code here 
Cstrings strBtn; 
Int nInterval=0; 

GetDlgItemText (IDC_EDIT_CAPTION m_StrCaption); 

NInterval=GetDlgItemInt (IDC_EDIT_INTERVAL, FALSE, TRUE); 

If (m_StrCaption=="" | | nInterval==0) {
return; 
} 

M_Start. GetWindowText (strBtn); 

{if (strBtn=="start") 
SetTimer (1, nInterval * 10000, NULL); 
M_Start. SetWindowText (" stop "); 
GetDlgItem (IDC_EDIT_CAPTION) - & gt; The EnableWindow (FALSE); 
GetDlgItem (IDC_EDIT_INTERVAL) - & gt; The EnableWindow (FALSE); 
} 
The else {
KillTimer (1); 
M_Start. SetWindowText (" start "); 
GetDlgItem (IDC_EDIT_CAPTION) - & gt; The EnableWindow (TRUE); 
GetDlgItem (IDC_EDIT_INTERVAL) - & gt; The EnableWindow (TRUE); 
} 
} 
Void CKeyBoardDlgDlg: : OnTimer (UINT nIDEvent) {
HWND HWND=: : FindWindow (NULL, m_StrCaption GetBuffer (0)); 

: : PostMessage (hWnd, WM_KEYDOWN, VK_F5, 1); 
Sleep (50); 
: : PostMessage (hWnd, WM_KEYUP VK_F5, 1); 

CDialog: : OnTimer (nIDEvent); 
}

But no response after the program is run, turn to...

HWND HWND=: : FindWindow (NULL, m_StrCaption GetBuffer (0));
When there is a registered name of the class is available, if the source program didn't register the name of the class, it won't, you can have a try with IE browser,

Or search for program search, find out the browser handles,

CodePudding user response:

refer to 7th floor qq_29522823 response:

Quote: refer to the sixth floor zhao4zhong1 response:

Corresponding message map, less

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