GetWindowText
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4/8/2010
This function copies the text of the specified window's title bar — if it has one — into a buffer. If the specified window is a control, the text of the control is copied. A remote application interface (RAPI) version of this function exists, and it is called CeGetWindowText (RAPI).
Syntax
int GetWindowText(
HWND hWnd,
LPTSTR lpString,
int nMaxCount
);
Parameters
- hWnd
[in] Handle to the window or control containing the text.
- lpString
[out] Long pointer to the buffer that will receive the text.
- nMaxCount
[in] Specifies the maximum number of characters to copy to the buffer, including the NULL character. If the text exceeds this limit, it is truncated.
Return Value
The length, in characters, of the copied string, not including the terminating null character, indicates success. Zero indicates that the window has no title bar or text, if the title bar is empty, or if the window or control handle is invalid. To get extended error information, call GetLastError.
This function cannot retrieve the text of an edit control in another application.
Remarks
When working with RAPI for Windows CE 1.0 and 1.01, use the PegGetWindowText function.
If the target window is owned by the current process, GetWindowText causes a WM_GETTEXT message to be sent to the specified window or control. If the target window is owned by another process and has a caption, GetWindowText retrieves the window caption text. If the window does not have a caption, the return value is a null string.
Requirements
| Header | winuser.h |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
See Also
Reference
GetWindowTextLength
SetWindowText
WM_GETTEXT
Windows Functions