I use this code in a multilined textBox event handler. When writing:
"hellowalker" in the textBox:s first line, "walker" turns blue.
If you delete this and go down a line and write the same: "owalker" turns blue and down a line again "lowalker" turns blue.
What could be wrong with this code as I always want the word "walker" to turn blue.
string stringToFind1 = "walke";
int positionen = 0;
positionen = textBox1->SelectionStart;
if (textBox1->Text != "")
{
array<System::String^>^ ReadLines = gcnew array<System::String^> ( textBox1->Lines->Length );
ReadLines = textBox1->Lines;
std::string Line1;
std::string Line2;
for(int count = 0; count < textBox1->Lines->Length; count++)
{
MarshalString(ReadLines[count], Line1);
Line2 = Line1.c_str();
std::transform(Line2.begin(), Line2.end(), Line2.begin(), ::tolower);
std::string::size_type startPos = Line2.find(stringToFind1);
if ( startPos != std::string::npos )
{
startPos += stringToFind1.length();
std::string::size_type endPos = Line2.find("r", startPos);
if ( endPos != std::string::npos )