请教 关于SendMessage和Getwindowtext的问题(22分)

淡

淡淡的笑

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GUEST, unregistred user!

• 2002-08-23

• #1

SendMessage(hwnd,WM_GETTEXT,1023,Integer(@buf[0]));<br>Getwindowtext(hwnd,pchar(buf),1024);<br><br>以上两个语句操作同一个句柄(某个窗口上的EDIT),为什么取得的结果不一样?<br>后一个为空(取别的窗口edit有时候会正常),前一个正常取得. 这两者有何区别?<br>

 

S

stuwei

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GUEST, unregistred user!

• 2002-08-23

• #2

关注

 

T

twos

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• 2002-08-23

• #3

GetWindowText<br>This function cannot retrieve the text of an edit control in another application<br>见Windows API帮助

 

X

xeen

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• 2002-08-23

• #4

Getwindowtext 对其他进程中控件类的窗口无效，而WM_GETTEXT是通用的.

 

淡

淡淡的笑

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GUEST, unregistred user!

• 2002-08-23

• #5

谢了.