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c++关闭按钮灰掉 - C++ UI - 清泛IT社区，为创新赋能！
...得系统菜单
CMenu *pMenu = GetSystemMenu(false);
//获得关闭按钮ID
UINT ID = pMenu->GetMenuItemID(pMenu->GetMenuItemCount()-1);
//使关闭按钮无效
pMenu->EnableMenuItem(ID,MF_GRAYED);复制代码启用：
//获得系统菜单
CMenu *pMenu = GetSystemMenu(false);
//获得关闭...
使用照相机时老是弹出 error 201 : the camera d id not return an image ...
问题来自B站：https://message.bilibili.com/?spm_id_from=333.1007.0.0#/reply
解决方法：
1、很可能删除了 “Pictures“ 图片文件夹：/storage/emulated/0/Pictures，这个文件夹不能被相机组件自动创建。
2、官方确认这是一个bug，已修复。确认一下...
REST API Login Pattern
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Principled Design of the Modern Web Architecture by Roy T. Fielding and Richard N. Taylor, i.e. sequence of works from all REST terminology came from, contains definition of client-server interaction:
All REST interactions are stateless. That is, each request contains
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Select Row number in postgres
... You should also specify an order in OVER clause: OVER (ORDER BY id). Otherwise the order is not guaranteed.
– AlexM
Jun 14 '16 at 4:30
3
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How do I check how many options there are in a dropdown menu?
...tList > option').length;
This assumes your <select> list has an ID of mySelectList.
http://api.jquery.com/length/
http://api.jquery.com/children/
http://api.jquery.com/child-selector/
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HTML / CSS How to add image icon to input type=“button”?
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This should do do what you want, assuming your button image is 16 by 16 pixels.
<input type="button" value="Add a new row" class="button-add" />
input.button-add {
background-image: url(/images/buttons/add.png); /* 16px x 16px */
background-color: transparent; /* make the...
MongoDB: How to update multiple documents with a single command?
... in the development releases (1.1.3). From the shell you do a multi update by passing true as the fourth argument to update(), where the the third argument is the upsert argument:
db.test.update({foo: "bar"}, {$set: {test: "success!"}}, false, true);
For versions of mongodb 2.2+ you need to set o...
How to use System.Net.HttpClient to post a complex type?
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This WITH the suggestions given above by @Fabiano make things happen.
– Peter Klein
Oct 20 '14 at 14:09
2
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ASP.Net MVC Html.HiddenFor with wrong value
...ough, it does not matter for me, if I use textboxfor or hiddenfor.
I just bypass the situation by using page scripts to store the model value as a js variable, because I need the hiddenfield for that purpose in the beginning.
Not sure if this helps but just consider..
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
... Same issue happened to me, I avoided changing the collation_YYY variables by setting the collation directly in the variable declaration. SET @my_var = 'string1,string2' COLLATE utf8_unicode_ci;
– nkatsar
Oct 10 '17 at 16:44
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