在perl中,我使用此代码使用win32 :: api调用shellabout对话框:
<iframe width="560" height="315" src="https://www.youtube.com/embed/2EIeUlvHAiM" frameborder="0" allowfullscreen></iframe>
以上是按预期工作的,但是当我尝试使用shellabout的unicode版本时:
my $shellAbout = Win32::API->new('Shell32', 'int ShellAboutA(HWND hWnd, LPCTSTR szApp, LPCTSTR szOtherStuff, HICON hIcon)');
$shellAbout->Call (0, 'perl-reguser', 'Editor del registro de usuario', 0);
不显示字符串。我声明了以下内容:
my $shellAbout = Win32::API->new('Shell32', 'int ShellAboutW(HWND hWnd, LPCTSTR szApp, LPCTSTR szOtherStuff, HICON hIcon)');
$shellAbout->Call (0, 'perl-reguser', 'Editor del registro de usuario', 0);
任何想法?
答案 0 :(得分:3)
对于W
次调用,LPCTSTR
必须是使用UTF-16le编码的以NUL结尾的字符串。
use strict;
use warnings;
use utf8; # Source code is encoded using UTF-8.
use Encode qw( encode );
use Win32::API qw( );
my $shellAbout;
sub ShellAbout {
my ($hWnd, $szApp, $szOtherStuff, $hIcon) = @_;
$shellAbout ||= Win32::API->new('Shell32', 'int ShellAboutW(HWND hWnd, LPCTSTR szApp, LPCTSTR szOtherStuff, HICON hIcon)');
$szApp = encode('UTF-16le', $szApp . "\0");
$szOtherStuff = encode('UTF-16le', $szOtherStuff . "\0") if defined($szOtherStuff);
$hWnd //= 0;
$hIcon //= 0;
return $shellAbout->Call($hWnd, $szApp, $szOtherStuff, $hIcon);
}
ShellAbout(undef, 'perl-reguser', 'Editor del registro de usuario', undef)
or die($^E);