QString to QKeyEvent
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Hello Everyone
In order to simulate a keyboard , I have created a namedpipe with a writer and reader application. The reader application is able to read the input from the writer application. The captured input in the namedpipe is a string. I have the task to convert the string to QKeyEvent. On conversion to QKeyEvent, I will use the eventFilter function to handle the respective events for the "converted QKeyEvent". -
Hello Everyone
In order to simulate a keyboard , I have created a namedpipe with a writer and reader application. The reader application is able to read the input from the writer application. The captured input in the namedpipe is a string. I have the task to convert the string to QKeyEvent. On conversion to QKeyEvent, I will use the eventFilter function to handle the respective events for the "converted QKeyEvent".@FVKamlesh
see the QKeyEvent constructor and serialize as many properties from the source event as needed and parse them again into a QKeyEvent on the target side.But hard to give an actual help, since you didn't ask any question?!
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I followed the steps as you mentioned
I have a class
[Code]
class nativekeyboardfilter: public QObject
{
public:
bool eventFilter(QObject* obj, QEvent* event);};
[/Code]
Inside the "eventFilter" function , I am reading the namedpipe using native linux approach
[Code]
int fd1;
// FIFO file path
char * myfifo = "/tmp/myfifo";// Creating the named file(FIFO) // mkfifo(<pathname>,<permission>) mkfifo(myfifo, 0666); char str1[80], str2[80]; while(1) { // First open in read only and read fd1 = open(myfifo,O_RDONLY); read(fd1, str1, 80); // Print the read string and close printf("User1:%s",str1); close(fd1); // Now open in write mode and write // string taken from user. fd1 = open(myfifo,O_WRONLY); fgets(str2, 80, stdin); write(fd1, str2, strlen(str2)+1); close(fd1); } return 0;}
[/Code]The str1 gets the input from the named pipe, but in this case, the gui application doesnt come up.
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I followed the steps as you mentioned
I have a class
[Code]
class nativekeyboardfilter: public QObject
{
public:
bool eventFilter(QObject* obj, QEvent* event);};
[/Code]
Inside the "eventFilter" function , I am reading the namedpipe using native linux approach
[Code]
int fd1;
// FIFO file path
char * myfifo = "/tmp/myfifo";// Creating the named file(FIFO) // mkfifo(<pathname>,<permission>) mkfifo(myfifo, 0666); char str1[80], str2[80]; while(1) { // First open in read only and read fd1 = open(myfifo,O_RDONLY); read(fd1, str1, 80); // Print the read string and close printf("User1:%s",str1); close(fd1); // Now open in write mode and write // string taken from user. fd1 = open(myfifo,O_WRONLY); fgets(str2, 80, stdin); write(fd1, str2, strlen(str2)+1); close(fd1); } return 0;}
[/Code]The str1 gets the input from the named pipe, but in this case, the gui application doesnt come up.
@FVKamlesh said in QString to QKeyEvent:
Inside the "eventFilter" function , I am reading the namedpipe using native linux approach
why?!?! why inside the event filter?
What does the event filter have to do with the named pipe? -
After going through the blogs, I understood that I need to
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Convert the string coming from the namedpipe to Qevent.
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This converted Qevent should be linked to qapplication.postevent
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In my application, I will have to connect the "eventfilter" with the above converted Qevent
Can you help me with the first one
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