visual c++ - OnTimer only repeating first function call -

-

Basically I have a program that has 6 sliders sending values ​​through a serial port, I'm dynamically using a timer. Resend these values ​​as they change by user. The problem I have is that the 6 functions called by my timer are behaving strangely, the first function calls the call, and continuously sends the signal, but the second 5 Only send signals later when the values ​​change the user. (I want to change the current value of each slider constantly, so that I'm sending it, that device does not come out, and the code is the same for them, but the timer already works properly). I was thinking that this was a known problem with timer or I am doing something wrong.

My timer is: 

  Loop_Timer = SetTimer (1,50,0);   
 ...    Zero Cessarial Port Dlg :: Onitimer (UINT Niedent) {write_1 (); // works as expected, without the constant user input, writes this function with Write_2 (); // These work only when they change, and stop sending later. Write_3 (); Write_4 (); Write_5 (); Write_6 (); CDialog :: OnTimer (nIDEvent); }    
 
 
 I've never used serial communication with MFC, but I do not think that The way to go to SetTimer is that those timers are very unbelievable when you set it to 50ms, then what exactly are you saying "do not tick more than 50ms", but it depends on the computer (and the system timer resolution ) Can be 50, 55, 500 or so on. Your app WM_TIMER messages have been reported every time the time is  and there are no more messages in the message queue  Therefore, if the user is carrying a mouse, the message will be "late"  < P> Besides, I do not know how long those Write_X functions take, but you should not do long things in the timer handler, or you'll miss the ticks (which is probably happening).  
 He said, if you really need to send the position of the slider (or whatever you need to send), then you should get a way to do it continuously, depending on the timer No. I mean, how to send your data and complete your work, notify your app or sender thread, and start sending again. But I'm not sure how this should be done.

Comments

Post a Comment

Popular posts from this blog

mysql - BLOB/TEXT column 'value' used in key specification without a key length -

-
I have developed an extension which works up to 1.6 on Magren (I'm trying Enterprise Edition, And I think the community is the same problem, because it is the same code). In my install script, I see the $ installer-> gt; CreateEntityTables ($ this- & gt; getTable ('alphanum / info')); The installation is done until it is not in the _text unit table. It crashed there! It turns out that when I log in to SQL and run it via PHPmyadmin, then this error is: Blob / Text column 'value' is used without the key 'key' . I saw the code there, and this is what is trying to create an index on the value column: -> addIndex ($ this- & gt; getIdxName ($ eavTableName, array ( 'attribute_id array (' attribute_id ',' value ')) - & gt; addIndex ($ this- & gt; getIdxName ($ eavTableName, array (' entity_type_id ' , 'Value')), array ('entity_type_id', 'value')) If there is no if statement is n...
Read more

c# - Using Vici cool Storage with monodroid -

-
Oh, for the moment I am not sure how it is officially supported, but for the success of the people Using Monodroid Vic Cool Storage I am able to leave and compile assemblies in my project, but while trying to use some classes, the errors of time have to be gathered. Especially when trying to connect like the example for Mono Touch string dbName = path. Cobain (environment. Gatefolder path (environment specialfolder personal), "mydb.db3"); // The following line will be called coolestation, where is the database, // to make it if it does not exist, and call a delegate that creates the necessary tables (only when the database file was newly created //) CSConfig.SetDB (DbName, true, () => {CSDatabase.ExecuteNonQuery ("Subscriber Integer Primary Key Attribute, Name Text (50) No, Number, Date First Text (30)");); There is no difference when I try to use the methods of CSConfig and when I cscfif If I try to pass 3 aggregates to STDB (3) then I get the invalid ...
Read more

python - referencing a variable in another function? -

-
I am an experienced TCL developer and write my own processes to help myself. I call it a proc i callVar, print out the value of the variable in a certain format, so I know that it is variable and what is the value "set foo 1; putVar foo" result 'foo = "1" I want to do the same thing in Python, but I can not find the answer :( In TCL I use the up command because when I pass the name of the variable, then I can see the value at the top. . I understand that an advanced light in the dragon There is no mechanism of r, but with its introspection capability, I would think that this is something trivial, but I am not getting the answer anywhere. It seems that this should work: and expanded: def foo (): y = "Hello World" printwor ("y") foo () y = "Hello World " You can, but you should not do so if your code is correct If is needed , then there is something wrong with your design, and you should probably use the dictionar...
Read more