bulebell

i just write a code to call a dll which is written by Labview. but when i finished ,it show the error:"labviewv.lib could not locate "ni_variable_UnregisterProviderCallback"", who can tell me what's wrong?

it give a different result ,so i think it is so strange what do you meaning ? can you tell me more details?

i use labview to build a dll to measure audio SNR,but when i use my program to call this dll ,its result is diffrent from the procedure result in labview,what is the matter with it? my computer program is written in C++bulider.

thanks very much. for your information, i had wrriten a successful program.

thanks very much for your answer. but i am so sorry to tell you .because my labview's version is 2009,so i can't open your vi.

thanks very much！ can you help me to offer me a sample? i am a freshman.

when i use the NIDAQ.dll，in the labview .it can run and show it data ,but if i call this dll,the result is null ,what's wrong？ NIDAQ_070528.zip test_dll.vi

when i use event structure，I edit a event which need two events（Boolean value change and mouse down） to control。 what can i do with it？

thanks very much，the photo you provide is just what i need。

when i use those controls，i can‘t find ways to set control value，what can I do about it？can you give me a example？

Would you mind telling me how it works ? I need a simple example。

Could you give me an example? oh, thanks

I cant find this vi，where can i find it？

when i use vi scripting to open a new window named as B.vi ，meantime， i want to transfer a value to B. vi ，what can i do about it？

when i want to save a vi，it show this error information （cannot help information of CSAN.vi），what's wrong？

thanks very much. The picture described is what I want to say。who can help me？（drer is the initial value）

in the test.vi，I want to add to use String2 to control this case structure，what should I do？ test.vi

i mean I want to set two types of control condition，the first one is the initial value and the initial value is a string。 the other one is the value when the forward case structure run over the case structure return。meanwhile ，this value is Dynamic data。

oh,i see, thanks very much

I want to use case structure vi, that has a prolem. it has a Initial value(it is a string)，but case run over，it will return a return value. I will use the return value to control this case structrue as a condition station .meanwhile ,the return value may use as a input value. what can I do to solve this problem?

for your information,i understand i maybe forget the "Set File Position"。 but i’m puzzled because i didn't Close file refnum, its running is ok. so whether i must add “close File”，if i don‘t use it，what will happen?

when use this vi to write my data，why the data i had written don‘t exist。it just remain the data i just write。what did it happen？ why this vi don't need close vi but the key need ？thanks very much

I user Open Config Data VI to program a mini vi, I make sure the section and the key exist，but when I run it, I cant't find the value in the .ini. Who can tell me how did it happen? write_key.vi

thanks a lot. for you information ,i handle with the problem.

I don't konw how to attach my vi.