作者leicheong (睡魔)
看板Programming
標題Re: [討論] 這是什麼鬼啊(游標.hide())(VB.NET)
時間Sun Sep 30 12:33:08 2007
※ 引述《wahaha99 (成為鄉民中道的力量)》之銘言：
: Windows.Forms.Cursor.Hide() 下n次
: Windows.Forms.Cursor.Show() 就要跟著下n次 才會重新顯示游標
: 反之亦然
: 這是什麼鬼$@#$%^ !?
: 該不會只有我的電腦這樣吧!?
Documentation有寫的...
Remarks
The Show and Hide method calls must be balanced. For every call to the Hide
method there must be a corresponding call to the Show method.
因為Windows API中的ShowCursor()也是這樣:
The ShowCursor function displays or hides the cursor.
Syntax
int ShowCursor( BOOL bShow);
Parameters
bShow
[in] Specifies whether the internal display counter is to be incremented or
decremented. If bShow is TRUE, the display count is incremented by one. If
bShow is FALSE, the display count is decremented by one.
Return Value
The return value specifies the new display counter.
Remarks
This function sets an internal display counter that determines whether the
cursor should be displayed. The cursor is displayed only if the display count
is greater than or equal to 0. If a mouse is installed, the initial display
count is 0. If no mouse is installed, the display count is –1.
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 58.152.217.222
1F：推 wahaha99:不明白...這樣做的用意為何 218.166.56.185 09/30 12:40
2F：→ TonyQ:有時候會需要這種機制的 59.115.77.252 09/30 13:10