Host+DLL模式下快捷键的使用，hostdll模式快捷键

Host+DLL模式下快捷键的使用，hostdll模式快捷键

 

   最近在做一个 Host+DLL 的插件系统，每个DLL模块都继承一个基类模块TBaseForm , 然后再基类模块里定义了增F1、删F2、改F3、查F4等功能，每个功能定义了一个快捷键，

在主程序这边通过PageControl来加载每个DLL模块，问题来了，当我打开多个模块时，按下 F1 时，系统调用的不是我当前激活的 TabSheet 模块，而是第一个打开的模块的新增

功能，原来快捷键被第一个模块注册后，后面打开的模块再注册就无效了。后来想到一个方法，就是再  TabSheet的 OnHide 事件里把当前模块的快捷键取消，在 onShow 事件里

再把当前模块的快捷键关联起来，经过测试成功！！！，以下是部分代码：

<span> 1</span> <span>procedure</span> TBaseForm.bidingshortcut;       <span>//</span><span>绑定快捷键</span>
<span> 2</span> <span>begin</span>
<span> 3</span>   al_new.ShortCut:=TextToShortCut(<span>'</span><span>F5</span><span>'</span><span>);
</span><span> 4</span>   al_edit.ShortCut:=TextToShortCut(<span>'</span><span>F6</span><span>'</span><span>);
</span><span> 5</span>   al_<span>delete</span>.ShortCut:=TextToShortCut(<span>'</span><span>F7</span><span>'</span><span>);
</span><span> 6</span>   al_refdata.ShortCut:=TextToShortCut(<span>'</span><span>F8</span><span>'</span><span>);
</span><span> 7</span>   al_query.ShortCut:=TextToShortCut(<span>'</span><span>F3</span><span>'</span><span>);
</span><span> 8</span>   al_report.ShortCut:=TextToShortCut(<span>'</span><span>F2</span><span>'</span><span>);
</span><span> 9</span>   al_<span>export</span>.ShortCut:=TextToShortCut(<span>'</span><span>F10</span><span>'</span><span>);
</span><span>10</span>   al_import.ShortCut:=TextToShortCut(<span>'</span><span>F4</span><span>'</span><span>);
</span><span>11</span>   al_gridset.ShortCut:=TextToShortCut(<span>'</span><span>F9</span><span>'</span><span>);
</span><span>12</span> <span>end</span><span>;
</span><span>13</span> 
<span>14</span> <span>procedure</span> TBaseForm.unbidingshortcut;     <span>//</span><span>解除绑定快捷键</span>
<span>15</span> <span>begin</span>
<span>16</span>   al_new.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>17</span>   al_edit.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>18</span>   al_<span>delete</span>.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>19</span>   al_refdata.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>20</span>   al_query.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>21</span>   al_report.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>22</span>   al_<span>export</span>.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>23</span>   al_import.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>24</span>   al_gridset.ShortCut:=TextToShortCut(<span>'</span><span>none</span><span>'</span><span>);
</span><span>25</span> <span>end</span>;

然后在Host程序中的onHide和onShow分别调用unbidingshortcut和bidingshortcut即可。

这里有一个基类的转换过程，因为我事先在tabsheet的tag里保存了当前窗体，所以只要做以下转换：

TBaseForm(TabSheet.tag).bidingshourtcut 就可以了。