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Recent content by nhungr
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Text file output
Ok, never mind. I got it. Rather silly mistake. ie. char filename1[MAXCHARS]; strcpy(filename1,DirPath); strcat(filename1,"\\Textfile1.txt"); -
Text file output
Hello. I have a C++ function that ouputs a set of data text files. I pass the directory path of where I want the files to be stored to the function through a BSTR variable. I then need the function to take this path string and append it to the front of the name of each text file. For... -
Division operator that returns an integer
Hello. Is there an operator or function in C++ that allows you to divide two numbers and return just the integer part (ie. the number on the left side of the decimal point)? The opposite of the modulus (%) operator! Examples: 7 / 2 would return the integer 3 14 / 3 would return the integer 4... -
Drawing points in a Picture control
That's it, you solved it!!!! Thank you very much. I knew it had to be some simple one-liner. I want to star your post, but my browser doesn't respond to the "Thank you" link for some reason. So thanks anyway...- nhungr
- Post #7
- Forum: Visual Basic (Classic)
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Drawing points in a Picture control
Here's a very simplified version of my drawing code. The Picture's Autoredraw is set to False. Note that the call to TimeStepLoop is actually a call to a function in a DLL library that I created in C++. This function loops through some calculations and returns the set of X and Y coordinates...- nhungr
- Post #5
- Forum: Visual Basic (Classic)
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Drawing points in a Picture control
I've already tried that! And there's no change???- nhungr
- Post #3
- Forum: Visual Basic (Classic)
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Drawing points in a Picture control
Hello. I am trying to draw points in a Picture control overtop of an image. I initially load an image into an Image control that I've placed inside the Picture boundaries. Then I stretch the image to the size of the Picture control. Then I run a loop that should draw a set of points every...- nhungr
- Thread
- Replies: 6
- Forum: Visual Basic (Classic)
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__declspec VERSUS _stdcall
I'm calling a C++ DLL from another application written in Visual Basic. When declaring a function in the DLL, what's the difference between using __declspec as opposed to _stdcall? For example: void __declspec(dllexport) CALLBACK MyFunction() //or: void _stdcall MyFunction() Is one... -
How to prematurely escape a While Loop
Thanks so much for the help. I figured it out. I just modified your KbTest function with the following code: bool KeyboardTest() { if (GetAsyncKeyState(VK_ESCAPE)!=0) { return true; } return false; } and it works... Thanks again, Nikolai. -
How to prematurely escape a While Loop
Thanks alot for the tips... ArkM: I tried implanting a version of your code into mine, but for some reason there is no response to any key presses. _kbhit() always returns 0 regardless of what key I press!?! The loop I am trying to interrupt is in a DLL that I call from a separate executable... -
How to prematurely escape a While Loop
I am writing a C++ DLL that runs a very long While loop. How can I allow the user to break out of this loop by pressing Esc on the keyboard? Thanks alot! Nikolai. -
Scaling using SetWindowExtEx
Hello. I am having problems scaling a Visual Basic Picture control from a C++ DLL. Here is the code that I am using: In Visual Basic, I call the scaling routine in the C++ DLL using the following code: Call ScalePicture(Picture1.hWnd, Picture1.hDC) where: Declare Sub ScalePicture Lib "C:\... -
Rescaling a Picture from a C++ DLL
Hello. I have a Visual Basic 6 program that calls a C++ DLL that I am in the process of writing. The DLL does some calculations and should draw some points in a Picture form contained in the VB exe. How can I scale the Picture form to a custom scale from the C++ DLL, so that the points are... -
While loop malfunction
Ahah! Thank you both for clarifying the problem. Makes sense now. This is my modified code now, which works: void MyFunction(float StartTime, float TimeStep, float Interval) { do { StartTime = MyLoop(StartTime,TimeStep,Interval); } while(StartTime<5); return } float... -
While loop malfunction
Hello. I've run into a strange problem that I can't figure out. It involves a while loop that sometimes loops one too many times for some unknown reason. A simplified version of my code is included below: void MyFunction(float StartTime, float TimeStep, float Interval) { do { StartTime...
