C / C++ / MFC

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Simple Question BaldwinMartin17-Jan-04 9:10 BaldwinMartin 17-Jan-04 9:10  If one has an app with a tray icon and menu, is there a way to create a graphic to the left side of the popup menu? It would run the complete vertical length of the menu. Best Wishes, ez_way Re: Simple Question Anonymous17-Jan-04 10:59 Anonymous 17-Jan-04 10:59  have a look menu classes Get default proxy (from IE)? Anonymous17-Jan-04 8:23 Anonymous 17-Jan-04 8:23  Hi, I wrote an application which connects via an HTTP proxy. Can I get the default proxy from the system (hostname and port)? Alternatively can I get it from IE? Re: Get default proxy (from IE)? Joaquín M López Muñoz17-Jan-04 9:30 Joaquín M López Muñoz 17-Jan-04 9:30  Hi, There is not such a thing as the system proxy. WinINet functions are tied to IE, and it is IE settings that you can get and set with this library. Take a look at InternetQueryOption documentation. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: Get default proxy (from IE)? Anonymous17-Jan-04 9:33 Anonymous 17-Jan-04 9:33  Cheers, I'll try... following what I have found http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internetqueryoption.asp http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q226/4/73.asp&NoWebContent=1 UCS-2 to UTF-8 and reverse Dominik Reichl17-Jan-04 8:21 Dominik Reichl 17-Jan-04 8:21  Hi! I need to convert a TCHAR* string (which actually can be a char* or wchar_t* string) to UTF-8 format and the other way round. I cannot use the MultiByteToWideChar and WideCharToMultiByte functions. Is there a small, tiny library that does this? I've had a look at IBM's ICU, but this library does much too much, I don't need all those additional conversion functions, etc. Or is there perhaps a simple method how I can do the conversion myself? Thanks in advance! Dominik _outp(0x64, 0xAD); and __asm mov al, 0xAD __asm out 0x64, al do the same... but what do they do?? (doesn't work on NT) Re: UCS-2 to UTF-8 and reverse Jörgen Sigvardsson17-Jan-04 8:47 Jörgen Sigvardsson 17-Jan-04 8:47  I dunno how allergic you are to the LGPL license, but here's one library which can do the transformation for you: http://www.gnu.org/software/libiconv/[^] -- Seraphim Shock. Gold for your ears. Change MFC Icon shultas17-Jan-04 7:31 shultas 17-Jan-04 7:31  Hey all. I have read a couple of articles on this site (and others) that I thought would help out, but was not exactly what I was looking for. I have modified the default "MFC" icon in my app to put my own in there. I compile and run it, all is fine, it shows up correctly. However, when I am looking at files with Explorer, the file shows up with the MFC icon! It shows up with the MFC icon, then the program name, and then "TODO: <file description="">" ... I figured out where I put in the description, company name and all that good stuff, but I can not figure out how to make it use the icon that I created that gets displayed on the taskbar when the program runs. Any suggestions? Thanks Re: Change MFC Icon l a u r e n17-Jan-04 7:51 l a u r e n 17-Jan-04 7:51  the icons have different sizes for different display contexts make sure u edit the 16x16 icon too "there is no spoon" biz stuff   about me Re: Change MFC Icon shultas17-Jan-04 8:47 shultas 17-Jan-04 8:47  If I open up my project , under "Icon" there is only one. IDR_MAINFRAME and under appearance it says "32x32". I've looked all through the resources and do not have a 16x16 or any other icon in there. Do I have to add a new ICON and make it 16x16? If so, how would I then tell the program to use it? Thank You Re: Change MFC Icon Michael Dunn17-Jan-04 8:49 Michael Dunn 17-Jan-04 8:49  One icon resource can contain multiple sizes of icons, IDR_MAINFRAME has a 32x32 and 16x16 in it, you need to change both. In VC 6 you select the size in the Device combo box in the icon editor. --Mike-- Ericahist | CP SearchBar v2.0.2 | Homepage | 1ClickPicGrabber New v2.0.1! | RightClick-Encrypt If my rhyme was a drug, I'd sell it by the gram. Re: Change MFC Icon shultas17-Jan-04 8:55 shultas 17-Jan-04 8:55  I'm using VS .NET now, but I did find the place where the multiple sizes are. Man alive, there are 9 of them! Different sizes and colors! So I pretty much have to edit all of them, right? It says like 16x16, 16 colors, 16x16 256 colors, 16x16 16million colors (or something like that) So is that so depending on what the users computer display color depth is set at which icon will be displayed? Thanks! Re: Change MFC Icon l a u r e n17-Jan-04 8:58 l a u r e n 17-Jan-04 8:58  yup u got it altho a 16color and a 256 color will generally be ok in fact i only use 16color for the small ones "there is no spoon" biz stuff   about me Re: Change MFC Icon -- THANKS! shultas17-Jan-04 9:14 shultas 17-Jan-04 9:14  THANKS!!! It works perfectly now! Took me a bit to figure out the Icon Editor! Use the Radio button to control motor speed Member 64882817-Jan-04 6:44 Member 648828 17-Jan-04 6:44  Is anybody can help me,if i want use three radio button to control the motor run in different speed.......what is the source i need to add!!!!!!!!!! Re: Use the Radio button to control motor speed l a u r e n17-Jan-04 7:52 l a u r e n 17-Jan-04 7:52  write an onclick() handler for the radio buttons and do ur logic there "there is no spoon" biz stuff   about me Re: Use the Radio button to control motor speed Member 64882818-Jan-04 5:02 Member 648828 18-Jan-04 5:02  Can u explain more detail how i use the logic to control motor run in different speed..... Re: Use the Radio button to control motor speed Roger Wright18-Jan-04 5:54 Roger Wright 18-Jan-04 5:54  What kind of motor is it? What are you using as a hardware controller? Did it come with a driver package? Is there an API for programming it? The method Lauren describes is simple enough, but we're working in the dark here. If you haven't got some kind of specific controller in mind, find one and provide some details. Nothing on your PC can directly control a motor (other than perhaps a single-speed dc motor connected to a line on a parallel port). For a dc motor you'll need at a minimum a D/A converter with a power amp. You'll probably also want an A/D converter with a tachometer on the motor for feedback, if the speed has to be regulated under load. For a stepper motor you'll need a stepper controller card, and you'll program it for a selectable step rate. A synchronous motor will need a programmable ac power supply to control it properly by varying the frequency. What are you using? "Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A. Re: Use the Radio button to control motor speed Member 64882818-Jan-04 14:59 Member 648828 18-Jan-04 14:59  In my project i just need counter clockwise dc motor with no load condition via parallel port. But what is the purpose of the D/A converter with power amp and how they control the motor run in different speed.... Re: Use the Radio button to control motor speed Roger Wright18-Jan-04 16:05 Roger Wright 18-Jan-04 16:05  A DC motor, unless it is very tiny, draws more current than a parallel port can provide without burning out. DC motors are voltage controlled (not really, but it looks that way to the user), so you need a variable voltage to adjust the speed. An D/A converter takes a digital input and converts it into a dc voltage. An amplifier following it raises the voltage and provides the large current necessary to drive a motor. Crude versions of both are easy to design and build. If the motor is very tiny you might try one of a couple of approaches. The simplest is to connect it to a line of the parallel port (with a small series resistance to protect the port) then output a pattern of bytes the alternates the ratio of 1's and 0's on the line to simulate a PWM signal. Another method would be to attach series resistances to all the lines, tie them together at the motor connection, then use a binary value to effectively switch resistances in and out of the circuit. Assuming that the parallel port is used to switch a powered motor to ground (line driver circuits can usually sink far more current than they can source), all 0's would create the lowest virtual resistance to ground, while all 1's would be effectively open. I don't know what a modern port can handle in terms of current - they don't publish specs with PCs anymore. They used to use a TTL open-collector configuration which could sink about 100 mA, max. I doubt that they've increased that, more likely it's less these days.According to my reading of some troubleshooting manuals, the parallel ports are still TTL, a 5V logic family, so the spec is unlikely to have changed much. Note that a logic 1 signal must be applied to the SELECT pin for the port to send any data at all. For the software to drive it you'll need to do some research. The parallel port uses much of the same stuff as a serial port. See "Using Communications Resources" in the Platform SDK for detailed information. You'll need to write a class for communicating with a parallel port with your motor connected to it, providing a function to change speeds which implements your preferred method of controlling the effective motor voltage, then your control program can call this function in response to a radio button selection. Sounds like fun, if hazardous to your PC - good luck! "Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A. Invalid handle lpRomang16-Jan-04 23:04 lpRomang 16-Jan-04 23:04  Hi How can check if a CWnd object atteched to a valid handle? I've tried this: bool isValid = pWnd->GetSafeHwnd() == NULL; but sometime GetSafeHwnd() returns me 0xfeeefeee thanks. Re: Invalid handle Monty217-Jan-04 1:07 Monty2 17-Jan-04 1:07  try isValid = IsWindow(m_hWnd); Hope it Helps C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg Re: Invalid handle lpRomang17-Jan-04 2:21 lpRomang 17-Jan-04 2:21  thanks Menu Member 80845916-Jan-04 20:51 Member 808459 16-Jan-04 20:51  Hi all, I choose grey property for File menu item. how can i un-grey it at run-time Thanks all, best regards, exporting Win32 Dll to a Vb Client SiddharthAtw16-Jan-04 20:39 SiddharthAtw 16-Jan-04 20:39  I knw how to make a Win32 Dll and implicit link it with the Win32 client in Same directory. What are the steps involved in exporting a function to a VB client.And can VB client use it as simle C function Rum + Whisky is very Risky Cheers!!!! Siddharth

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