Windows 10: HwndSource.FromHwnd return null

Hello,


why HwndSource.FromHwnd return null ?


...Hwnd handle = Process.GetCurrentProcess.MainWindowHandle;...parameters.ParentWindow = handle;HwndSource src = new HwndSourceparameters;...src.RootVisual = view;...HwndSource src2 = HwndSource.FromHwndhandle; // return null



Thanks

:)

 

working fine in emulator but in device API returning NULL value

Hi All,

When i tested the below code works fine in emulator, But when i am testing in device the "InternetOpenUrl" API returning NULL value.

code:

{

HINTERNET hOpen = InternetOpen (L

"InetURL/1.0",INTERNET_OPEN_TYPE_PRECONFIG,NULL, NULL, 0);if ( !hOpen ){

AfxMessageBox(L"Failed to open WinInet");

return 0;

}

HINTERNET hOpenUrl = InternetOpenUrl(

hOpen,L"Google",

NULL,0,

INTERNET_FLAG_PRAGMA_NOCACHE|INTERNET_FLAG_KEEP_CONNECTION,

0);

if ( hOpenUrl ){

FILE *FilePointer = NULL;

TCHAR buffer[1024];

DWORD dwRead;

FilePointer = fopen("\\Temp\\Hello.txt",
"a+");

while ( InternetReadFile( hOpenUrl, buffer, 500, &dwRead ) ){

if ( dwRead == 0 )

break;

buffer[dwRead] = 0;

if( FilePointer == NULL){

MessageBox(NULL, TEXT("Unable write data to file "), TEXT("Unable write data to file ") , NULL);

return -1;

}





fprintf(FilePointer, "%s", buffer);

fclose(FilePointer);

}





//}

}

return true;

}

When i am testing in emulator "InternetOpenUrl" API returning non-null value i.e its working fine. When i am trying to test in device(Windows mobile version 6.1) the API returning NULL value.

Please suggest me what is the problem?

FYI-:

1)I am using SDK 6.0

2)Device version "Windows mobile version 6.1"

Thanks,

Anand

return true;

}

When i am testing in emulator "InternetOpenUrl" API returning non-null value i.e its working fine. When i am trying to test in device(Windows mobile version 6.1) the API returning NULL value.

Please suggest me what is the problem?

FYI-:

1)I am using SDK 6.0

2)Device version "Windows mobile version 6.1"

Thanks,

Anand

 

Imaging, Other hardware - Null Fax - HP Photosmart - Error 0x80070490 • - Imaging, Other hardware - Null Print - HP Photosmart 7520 series - Error 0x8024200b "

Updates are available.

• Hewlett-Packard - Imaging, Other hardware - Null Print - HP Photosmart 7520 series.

• Hewlett-Packard - Imaging, Other hardware - Null Fax - HP Photosmart 7520 series.

When activated for update for the above messages as displayed; I am getting these following error messages:



" There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:

• Hewlett-Packard - Imaging, Other hardware - Null Fax - HP Photosmart 7520 series -
  Error 0x80070490
• Hewlett-Packard - Imaging, Other hardware - Null Print - HP Photosmart 7520 series - Error 0x8024200b
  "

 

How does one run a "Null service"? (missing /dev/null)

Tried it. Even with null as a file and folder. Gave full permissions. No change. Some had suggested creating it under Program Files/Git as well. Also no change.