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Throw exception if COM dm.dmsoft is not found #1

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Throw exception if COM dm.dmsoft is not found #1

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8 changes: 7 additions & 1 deletion damo.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,10 +10,16 @@ public class Damo
public Damo()
{
obj = Type.GetTypeFromProgID("dm.dmsoft");

if (obj == null)
throw new InvalidOperationException(
"COM dm.dmsoft not found. Please verify that it is registered and that the project is set to x86.\"\r\n"
);

obj_object = Activator.CreateInstance(obj);
}

// ���ô˽ӿڽ���com�����ͷ�
// 调用此接口进行com对象释放
public void ReleaseObj()
{
if (obj_object != null)
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