Examples with IntByReference com.sun.jna.ptr.IntByReference used on opensource projects

Example 41 with IntByReference

use of com.sun.jna.ptr.IntByReference in project jna by java-native-access.

the class PsapiTest method testEnumProcessModules.

@Test
public void testEnumProcessModules() {
    HANDLE me = null;
    Win32Exception we = null;
    try {
        me = Kernel32.INSTANCE.OpenProcess(WinNT.PROCESS_ALL_ACCESS, false, Kernel32.INSTANCE.GetCurrentProcessId());
        assertTrue("Handle to my process should not be null", me != null);
        List<HMODULE> list = new LinkedList<HMODULE>();
        HMODULE[] lphModule = new HMODULE[100 * 4];
        IntByReference lpcbNeeded = new IntByReference();
        if (!Psapi.INSTANCE.EnumProcessModules(me, lphModule, lphModule.length, lpcbNeeded)) {
            throw new Win32Exception(Native.getLastError());
        }
        for (int i = 0; i < lpcbNeeded.getValue() / 4; i++) {
            list.add(lphModule[i]);
        }
        assertTrue("List should have at least 1 item in it.", list.size() > 0);
    } catch (Win32Exception e) {
        we = e;
        // re-throw to invoke finally block
        throw we;
    } finally {
        try {
            Kernel32Util.closeHandle(me);
        } catch (Win32Exception e) {
            if (we == null) {
                we = e;
            } else {
                we.addSuppressed(e);
            }
        }
        if (we != null) {
            throw we;
        }
    }
}

Example 42 with IntByReference

use of com.sun.jna.ptr.IntByReference in project jna by java-native-access.

the class PsapiTest method testGetModuleFileNameEx.

@Test
public void testGetModuleFileNameEx() {
    final JFrame w = new JFrame();
    try {
        w.setVisible(true);
        final String searchSubStr = "\\bin\\java";
        final HWND hwnd = new HWND(Native.getComponentPointer(w));
        final IntByReference pid = new IntByReference();
        User32.INSTANCE.GetWindowThreadProcessId(hwnd, pid);
        final HANDLE process = Kernel32.INSTANCE.OpenProcess(0x0400 | 0x0010, false, pid.getValue());
        if (process == null)
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        // check ANSI function
        final byte[] filePathAnsi = new byte[1025];
        int length = Psapi.INSTANCE.GetModuleFileNameExA(process, null, filePathAnsi, filePathAnsi.length - 1);
        if (length == 0)
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        assertTrue("Path didn't contain '" + searchSubStr + "': " + Native.toString(filePathAnsi), Native.toString(filePathAnsi).toLowerCase().contains(searchSubStr));
        // check Unicode function
        final char[] filePathUnicode = new char[1025];
        length = Psapi.INSTANCE.GetModuleFileNameExW(process, null, filePathUnicode, filePathUnicode.length - 1);
        if (length == 0)
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        assertTrue("Path didn't contain '" + searchSubStr + "': " + Native.toString(filePathUnicode), Native.toString(filePathUnicode).toLowerCase().contains(searchSubStr));
        // check default function
        final int memAllocSize = 1025 * Native.WCHAR_SIZE;
        final Memory filePathDefault = new Memory(memAllocSize);
        length = Psapi.INSTANCE.GetModuleFileNameEx(process, null, filePathDefault, (memAllocSize / Native.WCHAR_SIZE) - 1);
        if (length == 0)
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        assertTrue("Path didn't contain '" + searchSubStr + "': " + Native.toString(filePathDefault.getCharArray(0, memAllocSize / Native.WCHAR_SIZE)), Native.toString(filePathDefault.getCharArray(0, memAllocSize / Native.WCHAR_SIZE)).toLowerCase().contains(searchSubStr));
    } finally {
        w.dispose();
    }
}

Example 43 with IntByReference

use of com.sun.jna.ptr.IntByReference in project jna by java-native-access.

the class Rasapi32Test method testRasGetEntryProperties.

public void testRasGetEntryProperties() {
    RASENTRY.ByReference rasEntry = new RASENTRY.ByReference();
    IntByReference lpdwEntryInfoSize = new IntByReference(rasEntry.size());
    int err = Rasapi32.INSTANCE.RasGetEntryProperties(null, "TEST", rasEntry, lpdwEntryInfoSize, null, null);
    assertEquals(623, err);
}

Example 44 with IntByReference

use of com.sun.jna.ptr.IntByReference in project jna by java-native-access.

the class WinspoolTest method testEnumPrinters_4.

public void testEnumPrinters_4() {
    IntByReference pcbNeeded = new IntByReference();
    IntByReference pcReturned = new IntByReference();
    // if there are no printers installed, EnumPrinters will succeed with zero items returned 
    Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 4, null, 0, pcbNeeded, pcReturned);
    assertTrue(pcReturned.getValue() == 0);
    if (pcbNeeded.getValue() > 0) {
        PRINTER_INFO_4 pPrinterEnum = new PRINTER_INFO_4(pcbNeeded.getValue());
        assertTrue(Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 4, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded, pcReturned));
        assertTrue(pcReturned.getValue() >= 0);
        PRINTER_INFO_4[] printerInfo = (PRINTER_INFO_4[]) pPrinterEnum.toArray(pcReturned.getValue());
        for (PRINTER_INFO_4 pi : printerInfo) {
            assertTrue(pi.pPrinterName == null || pi.pPrinterName.length() >= 0);
        }
    }
}

Example 45 with IntByReference

use of com.sun.jna.ptr.IntByReference in project jna by java-native-access.

the class WinspoolTest method testEnumPrinters_2.

public void testEnumPrinters_2() {
    IntByReference pcbNeeded = new IntByReference();
    IntByReference pcReturned = new IntByReference();
    // if there are no printers installed, EnumPrinters will succeed with zero items returned 
    Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 2, null, 0, pcbNeeded, pcReturned);
    assertTrue(pcReturned.getValue() == 0);
    if (pcbNeeded.getValue() > 0) {
        PRINTER_INFO_2 pPrinterEnum = new PRINTER_INFO_2(pcbNeeded.getValue());
        assertTrue(Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 2, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded, pcReturned));
        assertTrue(pcReturned.getValue() >= 0);
        PRINTER_INFO_2[] printerInfo = (PRINTER_INFO_2[]) pPrinterEnum.toArray(pcReturned.getValue());
        for (PRINTER_INFO_2 pi : printerInfo) {
            assertTrue(pi.pPrinterName == null || pi.pPrinterName.length() >= 0);
        }
    }
}