nWindow = CreateWindow(L"Edit", L"print(\"Hello, World!\")",
WS_BORDER | WS_CHILD | WS_VISIBLE | ES_MULTILINE | WS_VSCROLL | WS_HSCROLL, 0, 30, width, height-30, hWnd,
NULL, NULL, NULL);
C++ Win32 Window Text
Author
I have created a window:
When a user clicks a button I want to get all the text that the user has typed into this textbox. Do you know how?
TCHAR Buffer[/* insert length of buffer */];int Length = GetWindowText(nWindow, Buffer, sizeof(Buffer)/sizeof(Buffer[0]));[edit]
MSDN - GetWindowText Function
The code above would need to be handled in the WM_COMMAND message sent by the button press, where nWindow is the handle to your textbox.
(also changed WCHAR to TCHAR)
In your WinProc add this code:
Edit: Ninja'd :(
...case WM_COMMAND:if(static_cast<HWND>(lParam) == hWndButton && LOWORD(wParam) == BN_CLICKED){ TCHAR buf[MAX_INPUT_LENGTH]; GetWindowText(nWindow, buf, sizeof(buf)/sizeof(buf[0])); // Use the text here..}break;...Edit: Ninja'd :(
Author
That didn't work. Can someone give me some example code that takes the ALL of the text in the editbox and put it in a file, named "Test.lua". Everything was working fine until I had to start converting between const char and wchar_t, then its like my brain melted and I am stuck.
I'm having some flashbacks to another thread started by you - C++ Errors
The GetWindowText is what you want. Store the data in a TCHAR array (as shown in both posts above) and use wcstombs or WideCharToMultiByte to convert the returned text to a CHAR array. To be safe, you'll want the CHAR array to be longer than the TCHAR array, in case you have any UTF-16 characters than need to map to something larger than a single byte.
The GetWindowText is what you want. Store the data in a TCHAR array (as shown in both posts above) and use wcstombs or WideCharToMultiByte to convert the returned text to a CHAR array. To be safe, you'll want the CHAR array to be longer than the TCHAR array, in case you have any UTF-16 characters than need to map to something larger than a single byte.
Author
Thanks, I'm new to Win32 programming, and I am trying to understand it better.
Author
One more thing... I have this code:
It should be writing:
To the file, but instead, it is writing:
That looks like it's memory location so I tried:
An this is what it wrote to the File:
Do you know how I can make it write:
??????
wchar_t Buffer[100]; HWND nWind = GetSyntaxWindow(); // Returns the TextBox GetWindowText(nWind, Buffer, sizeof(Buffer)/sizeof(Buffer[0])); std::ofstream File; File.open("Test.lua"); File << Buffer; File.close();It should be writing:
print("Hello, World!")To the file, but instead, it is writing:
0021EFE0That looks like it's memory location so I tried:
File << *Buffer;An this is what it wrote to the File:
0Do you know how I can make it write:
print("Hello, World!")??????
You need to use a wide character stream (wofstream) for wchar_t strings:
narrow.txt:
wide.txt:
#include <iostream>#include <fstream>using namespace std;int main() { const wchar_t wideMessage[] = L"This is a wide message."; const char narrowMessage[] = "This is a narrow message."; ofstream narrowStream( "./narrow.txt" ); narrowStream << narrowMessage << endl << wideMessage << endl; wofstream wideStream( "./wide.txt" ); wideStream << narrowMessage << endl << wideMessage << endl;}narrow.txt:
This is a narrow message.002FFB34wide.txt:
This is a narrow message.This is a wide message.This topic is closed to new replies.
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