在 Inno Setup 中使用 WMI 查询列出所有物理打印机
List all physical printers using WMI query in Inno Setup
我正在尝试根据 的回答获取连接到 Windows 的物理打印机名称列表。
但只得到:"Send To OneNote 16".
这是我的查询:
Query := 'SELECT Name FROM Win32_Printer';
Printer := WbemQuery(WbemServices, Query);
if not VarIsNull(Printer) then
begin
Log(Format('Printers=%s', [Printer.Name]));
end;
您必须迭代结果集:
var
Query: string;
WbemLocator, WbemServices, WbemObjectSet: Variant;
Printer: Variant;
I: Integer;
begin
WbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
WbemServices := WbemLocator.ConnectServer('.', 'root\CIMV2');
Query := 'SELECT Name FROM Win32_Printer';
WbemObjectSet := WbemServices.ExecQuery(Query);
if not VarIsNull(WbemObjectSet) and (WbemObjectSet.Count > 0) then
begin
for I := 0 to WbemObjectSet.Count - 1 do
begin
Printer := WbemObjectSet.ItemIndex(I);
if not VarIsNull(Printer) then
begin
Log(Printer.Name);
end;
end;
end;
end;
代码需要 .
的 Inno Setup Unicode 版本
实际上,您可以在同一个问题中看到这段代码,您从中获取 WbemQuery
的地方:
注意 Win32_NetworkAdapterConfiguration
是如何迭代的。
我正在尝试根据
但只得到:"Send To OneNote 16".
这是我的查询:
Query := 'SELECT Name FROM Win32_Printer';
Printer := WbemQuery(WbemServices, Query);
if not VarIsNull(Printer) then
begin
Log(Format('Printers=%s', [Printer.Name]));
end;
您必须迭代结果集:
var
Query: string;
WbemLocator, WbemServices, WbemObjectSet: Variant;
Printer: Variant;
I: Integer;
begin
WbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
WbemServices := WbemLocator.ConnectServer('.', 'root\CIMV2');
Query := 'SELECT Name FROM Win32_Printer';
WbemObjectSet := WbemServices.ExecQuery(Query);
if not VarIsNull(WbemObjectSet) and (WbemObjectSet.Count > 0) then
begin
for I := 0 to WbemObjectSet.Count - 1 do
begin
Printer := WbemObjectSet.ItemIndex(I);
if not VarIsNull(Printer) then
begin
Log(Printer.Name);
end;
end;
end;
end;
代码需要
实际上,您可以在同一个问题中看到这段代码,您从中获取 WbemQuery
的地方:
注意 Win32_NetworkAdapterConfiguration
是如何迭代的。