about SendMessage(50分)

高

高飞

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• 2000-05-28

• #1

在DELPHI5.0中，使用SendMessage(Toolbar1.handle, TB_DeleteButton, 1,0)函数，编译出错，<br>提示Error] Unit1.pas(32): Undeclared identifier: 'tb_deletebutton'<br>[Fatal Error] Project1.dpr(5): Could not compile used unit 'Unit1.pas'；<br>请问是什么原因？

 

K

Kang

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• 2000-05-28

• #2

TB_DeleteButton没有定义<br>或定义成局部变量,SendMessage(Toolbar1.handle, TB_DeleteButton, 1,0)无法引用

 

W

wjiachun

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GUEST, unregistred user!

• 2000-05-28

• #3

uses comctrls;

 

L

ljactive

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GUEST, unregistred user!

• 2000-05-30

• #4

引用单元<br>uses commctrl 即可

 

高

高飞

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2000-06-05

• #5

接受答案了.