本文整理汇总了C#中HDITEM类的典型用法代码示例。如果您正苦于以下问题：C# HDITEM类的具体用法？C# HDITEM怎么用？C# HDITEM使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
HDITEM类属于命名空间，在下文中一共展示了HDITEM类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: SetSortIcons
public static void SetSortIcons(ListView listView, int previouslySortedColumn, int newSortColumn, SortOrder sorting) {
IntPtr headerHandle = SendMessage(listView.Handle, LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
IntPtr newColumn = new IntPtr(newSortColumn);
IntPtr prevColumn = new IntPtr(previouslySortedColumn);
HDITEM hditem;
// Only update the previous item if it existed and if it was a different one.
if (previouslySortedColumn != -1 && previouslySortedColumn != newSortColumn) {
// Clear icon from the previous column.
hditem = new HDITEM();
hditem.mask = HDI_FORMAT;
ItemSendMessage(headerHandle, HDM_GETITEM, prevColumn, ref hditem);
hditem.fmt &= ~HDF_SORTDOWN & ~HDF_SORTUP;
ItemSendMessage(headerHandle, HDM_SETITEM, prevColumn, ref hditem);
}
// Set icon on the new column.
hditem = new HDITEM();
hditem.mask = HDI_FORMAT;
ItemSendMessage(headerHandle, HDM_GETITEM, newColumn, ref hditem);
if (sorting == SortOrder.Ascending) {
hditem.fmt &= ~HDF_SORTDOWN;
hditem.fmt |= HDF_SORTUP;
}
else {
hditem.fmt &= ~HDF_SORTUP;
hditem.fmt |= HDF_SORTDOWN;
}
ItemSendMessage(headerHandle, HDM_SETITEM, newColumn, ref hditem);
}示例2: SetSortIcon
//extension method for setting "Sort Icon" of the listview.
public static void SetSortIcon(this System.Windows.Forms.ListView ListViewControl, int ColumnIndex, System.Windows.Forms.SortOrder Order)
{
IntPtr ColumnHeader = SendMessage(ListViewControl.Handle, LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
for (int ColumnNumber = 0; ColumnNumber <= ListViewControl.Columns.Count - 1; ColumnNumber++)
{
IntPtr ColumnPtr = new IntPtr(ColumnNumber);
HDITEM item = new HDITEM();
item.mask = (int)HDITEM.Mask.Format;
SendMessageHDITEM(ColumnHeader, HDM_GETITEM, ColumnPtr, ref item);
if (Order != System.Windows.Forms.SortOrder.None && ColumnNumber == ColumnIndex)
{
switch (Order)
{
case System.Windows.Forms.SortOrder.Ascending:
item.fmt &= ~(int)HDITEM.Format.SortDown;
item.fmt |= (int)HDITEM.Format.SortUp;
break;
case System.Windows.Forms.SortOrder.Descending:
item.fmt &= ~(int)HDITEM.Format.SortUp;
item.fmt |= (int)HDITEM.Format.SortDown;
break;
}
}
else
{
item.fmt &= ~(int)HDITEM.Format.SortDown & ~(int)HDITEM.Format.SortUp;
}
SendMessageHDITEM(ColumnHeader, HDM_SETITEM, ColumnPtr, ref item);
}
}示例3: SetSortIcon
public static void SetSortIcon(this ListView listViewControl, int columnIndex, SortOrder order)
{
IntPtr columnHeader = SendMessage(listViewControl.Handle, LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
for (int columnNumber = 0; columnNumber <= listViewControl.Columns.Count - 1; columnNumber++)
{
var columnPtr = new IntPtr(columnNumber);
var item = new HDITEM
{
mask = HDITEM.Mask.Format
};
if (SendMessage(columnHeader, HDM_GETITEM, columnPtr, ref item) == IntPtr.Zero)
{
throw new Win32Exception();
}
if (order != SortOrder.None && columnNumber == columnIndex)
{
switch (order)
{
case SortOrder.Ascending:
item.fmt &= ~HDITEM.Format.SortDown;
item.fmt |= HDITEM.Format.SortUp;
break;
case SortOrder.Descending:
item.fmt &= ~HDITEM.Format.SortUp;
item.fmt |= HDITEM.Format.SortDown;
break;
}
}
else
{
item.fmt &= ~HDITEM.Format.SortDown & ~HDITEM.Format.SortUp;
}
if (SendMessage(columnHeader, HDM_SETITEM, columnPtr, ref item) == IntPtr.Zero)
{
throw new Win32Exception();
}
}
}示例4: SetSortIcons
public void SetSortIcons(int newSortColumn)
{
IntPtr hHeader = SendMessage(this.Handle, LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
IntPtr newColumn = new IntPtr(newSortColumn);
IntPtr prevColumn = new IntPtr(_previouslySortedColumn);
HDITEM hdItem;
IntPtr rtn;
// Only update the previous item if it existed and if it was a different one.
if (_previouslySortedColumn != -1 && _previouslySortedColumn != newSortColumn)
{
// Clear icon from the previous column.
hdItem = new HDITEM();
hdItem.mask = HDI_FORMAT;
rtn = SendMessageITEM(hHeader, HDM_GETITEM, prevColumn, ref hdItem);
hdItem.fmt &= ~HDF_SORTDOWN & ~HDF_SORTUP;
rtn = SendMessageITEM(hHeader, HDM_SETITEM, prevColumn, ref hdItem);
}
// Set icon on the new column.
hdItem = new HDITEM();
hdItem.mask = HDI_FORMAT;
rtn = SendMessageITEM(hHeader, HDM_GETITEM, newColumn, ref hdItem);
if (this.Sorting == SortOrder.Ascending)
{
hdItem.fmt &= ~HDF_SORTDOWN;
hdItem.fmt |= HDF_SORTUP | HDF_BITMAP_ON_RIGHT;
}
else
{
hdItem.fmt &= ~HDF_SORTUP;
hdItem.fmt |= HDF_SORTDOWN;
}
rtn = SendMessageITEM(hHeader, HDM_SETITEM, newColumn, ref hdItem);
_previouslySortedColumn = newSortColumn;
}示例5: SetColumnImage
/// <summary>
/// Setup the given column of the listview to show the given image to the right of the text.
/// If the image index is -1, any previous image is cleared
/// </summary>
/// <param name="list">The listview to send a m to</param>
/// <param name="columnIndex">Index of the column to modifiy</param>
/// <param name="order"></param>
/// <param name="imageIndex">Index into the small image list</param>
public static void SetColumnImage(ListView list, int columnIndex, SortOrder order, int imageIndex)
{
IntPtr hdrCntl = NativeMethods.GetHeaderControl(list);
if (hdrCntl.ToInt32() == 0)
return;
HDITEM item = new HDITEM();
item.mask = HDI_FORMAT;
IntPtr result = SendMessageHDItem(hdrCntl, HDM_GETITEM, columnIndex, ref item);
item.fmt &= ~(HDF_SORTUP | HDF_SORTDOWN | HDF_IMAGE | HDF_BITMAP_ON_RIGHT);
if (NativeMethods.HasBuiltinSortIndicators()) {
if (order == SortOrder.Ascending)
item.fmt |= HDF_SORTUP;
if (order == SortOrder.Descending)
item.fmt |= HDF_SORTDOWN;
}
else {
item.mask |= HDI_IMAGE;
item.fmt |= (HDF_IMAGE | HDF_BITMAP_ON_RIGHT);
item.iImage = imageIndex;
}
result = SendMessageHDItem(hdrCntl, HDM_SETITEM, columnIndex, ref item);
}示例6: SendMessage
public static extern IntPtr SendMessage(IntPtr hWnd, UInt32 msg, IntPtr wParam, ref HDITEM lParam);示例7: hasSort
private bool hasSort(int column)
{
if (Environment.OSVersion.Version.Major > 5)
{
HDITEM hi = new HDITEM();
hi.mask = HDI_FORMAT;
SendMessage(_hHeaderWnd, HDM_GETITEMA, column, ref hi);
if ((hi.fmt & (HDF_SORTUP | HDF_SORTDOWN)) > 0)
return true;
}
return false;
}示例8: hasButton
private bool hasButton(int column)
{
if (Environment.OSVersion.Version.Major > 5)
{
HDITEM hi = new HDITEM();
hi.mask = HDI_FORMAT;
SendMessage(_hHeaderWnd, HDM_GETITEMA, columnAtIndex(column), ref hi);
if ((hi.fmt & HDF_SPLITBUTTON) == HDF_SPLITBUTTON)
return true;
}
return false;
}示例9: drawIcon
private void drawIcon(IntPtr hdc, int column, RECT tr)
{
IntPtr iml = (IntPtr)SendMessage(_hHeaderWnd, HDM_GETIMAGELIST, HDIS_STATE, 0);
if (iml != IntPtr.Zero)
{
int cx = 0;
int cy = 0;
HDITEM hi = new HDITEM();
ImageList_GetIconSize(iml, out cx, out cy);
hi.mask = HDI_IMAGE;
SendMessage(_hHeaderWnd, HDM_GETITEMA, column, ref hi);
tr.Top = (tr.Bottom - cy) / 2;
tr.Left += 4;
ImageList_DrawEx(iml, hi.iImage, hdc, tr.Left, tr.Top, cx, cy, CLR_NONE, 0, ILD_TRANSPARENT);
}
}示例10: columnAtIndex
private int columnAtIndex(int column)
{
HDITEM hd = new HDITEM();
hd.mask = HDI_ORDER;
for (int i = 0; i < ColumnCount; i++)
{
if (SendMessage(_hHeaderWnd, HDM_GETITEMA, column, ref hd) != IntPtr.Zero)
return hd.iOrder;
}
return 0;
}示例11: ItemSendMessage
private static extern IntPtr ItemSendMessage(IntPtr Handle, Int32 msg, IntPtr wParam, ref HDITEM lParam);示例12: SetHeaderImage
/// <summary>
/// Set the Header Column image
/// </summary>
/// <param name="list">ListView</param>
/// <param name="columnIndex">Current column index</param>
/// <param name="order">Current sort order</param>
/// <param name="showImage">Display image in column (turn on/off image)</param>
public static void SetHeaderImage(ListView list, int columnIndex, SortOrder order, bool showImage)
{
IntPtr _header;
HDITEM _hdItem = new HDITEM();
int _iconNumber = 0;
//set the image index based on sort order from the smallimagelist property
if( order == SortOrder.Ascending )
_iconNumber = 0;
else
_iconNumber = 1;
//get a handle to the listview header component
_header = GetHeader(list.Handle);
//set up the required structure members
_hdItem.mask = HDI.IMAGE | HDI.FORMAT;
_hdItem.pszText = list.Columns[columnIndex].Text;
// check to show the indicator image
if( showImage )
{
_hdItem.fmt = HDF.STRING | HDF.IMAGE | HDF.BITMAP_ON_RIGHT;
_hdItem.iImage = _iconNumber;
}
else
_hdItem.fmt = HDF.STRING;
//modify the header
SendMessage(_header, HDM.SETITEM, (uint)columnIndex, ref _hdItem);
}示例13: SetColumnPosition
/// <summary>
/// Set a column's position
/// </summary>
/// <param name="hwndLV">handle to listview</param>
/// <param name="ColumnIndex">Column Index to set</param>
/// <param name="iOrder">Position to set</param>
public static void SetColumnPosition(IntPtr hwndLV, int ColumnIndex, int iOrder)
{
HDITEM hdi = new HDITEM();
hdi.mask = HDI.ORDER;
hdi.iOrder = iOrder;
Header_SetItem(GetHeader(hwndLV), ColumnIndex, hdi);
}示例14: SendMessage
/// <summary>
///
/// </summary>
/// <param name="hWnd"></param>
/// <param name="msg"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
public static int SendMessage(IntPtr hWnd, Enum msg, uint wParam, ref HDITEM lParam)
{
return SendMessage(hWnd, (uint)(WM)msg, wParam, ref lParam);
}示例15: Header_SetItem
/// <summary>
///
/// </summary>
/// <param name="hwndHD"></param>
/// <param name="index"></param>
/// <param name="hdi"></param>
/// <returns></returns>
public static bool Header_SetItem(IntPtr hwndHD, int index, HDITEM hdi)
{
return SendMessage(hwndHD, HDM.SETITEM, (uint)index, ref hdi) != 0;
}